1542074544 has 80 divisors (see below), whose sum is σ = 4435653600. Its totient is φ = 512941824.

The previous prime is 1542074543. The next prime is 1542074551. The reversal of 1542074544 is 4454702451.

1542074544 is a `hidden beast` number, since 1 + 5 + 42 + 0 + 74 + 544 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1542074499 and 1542074508.

It is not an unprimeable number, because it can be changed into a prime (1542074543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216382 + ... + 223394.

It is an arithmetic number, because the mean of its divisors is an integer number (55445670).

Almost surely, 2^1542074544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542074544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2217826800).

1542074544 is an abundant number, since it is smaller than the sum of its proper divisors (2893579056).

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

1542074544 is a wasteful number, since it uses less digits than its factorization.

1542074544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7539 (or 7527 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

The square root of 1542074544 is about 39269.2569830395. The cubic root of 1542074544 is about 1155.3186639701.

Adding to 1542074544 its reverse (4454702451), we get a palindrome (5996776995).

The spelling of 1542074544 in words is "one billion, five hundred forty-two million, seventy-four thousand, five hundred forty-four".