1442187432 has 48 divisors (see below), whose sum is σ = 4463915040. Its totient is φ = 412053408.

The previous prime is 1442187431. The next prime is 1442187463. The reversal of 1442187432 is 2347812441.

1442187432 is a `hidden beast` number, since 1 + 4 + 4 + 218 + 7 + 432 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1442187431) 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, 1430238 + ... + 1431245.

It is an arithmetic number, because the mean of its divisors is an integer number (92998230).

Almost surely, 2^1442187432 is an apocalyptic number.

1442187432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1442187432 is an abundant number, since it is smaller than the sum of its proper divisors (3021727608).

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

1442187432 is a wasteful number, since it uses less digits than its factorization.

1442187432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861502 (or 2861495 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 1442187432 is about 37976.1429321094. The cubic root of 1442187432 is about 1129.8147376862.

Adding to 1442187432 its reverse (2347812441), we get a palindrome (3789999873).

The spelling of 1442187432 in words is "one billion, four hundred forty-two million, one hundred eighty-seven thousand, four hundred thirty-two".