1542906432 has 84 divisors (see below), whose sum is σ = 4430815116. Its totient is φ = 513331200.

The previous prime is 1542906413. The next prime is 1542906437. The reversal of 1542906432 is 2346092451.

It is a happy number.

1542906432 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 9 + 0 + 643 + 2 = 666.

1542906432 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1196053056 + 346853376 = 34584^2 + 18624^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1542906437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343948 + ... + 348404.

It is an arithmetic number, because the mean of its divisors is an integer number (52747799).

Almost surely, 2^1542906432 is an apocalyptic number.

1542906432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542906432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215407558).

1542906432 is an abundant number, since it is smaller than the sum of its proper divisors (2887908684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1542906432 is a wasteful number, since it uses less digits than its factorization.

1542906432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076 (or 5063 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1542906432 is about 39279.8476575457. The cubic root of 1542906432 is about 1155.5263761424.

Adding to 1542906432 its reverse (2346092451), we get a palindrome (3888998883).

The spelling of 1542906432 in words is "one billion, five hundred forty-two million, nine hundred six thousand, four hundred thirty-two".