1572791904 has 120 divisors (see below), whose sum is σ = 4637833200. Its totient is φ = 522872064.

The previous prime is 1572791903. The next prime is 1572791947. The reversal of 1572791904 is 4091972751.

1572791904 is a `hidden beast` number, since 1 + 572 + 79 + 1 + 9 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1572791904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572791903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1552102 + ... + 1553114.

It is an arithmetic number, because the mean of its divisors is an integer number (38648610).

Almost surely, 2^1572791904 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 1572791904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2318916600).

1572791904 is an abundant number, since it is smaller than the sum of its proper divisors (3065041296).

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

1572791904 is a wasteful number, since it uses less digits than its factorization.

1572791904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 1572791904 is about 39658.4405139688. The cubic root of 1572791904 is about 1162.9394101624.

The spelling of 1572791904 in words is "one billion, five hundred seventy-two million, seven hundred ninety-one thousand, nine hundred four".