1572319872 has 48 divisors (see below), whose sum is σ = 4524517530. Its totient is φ = 524106240.

The previous prime is 1572319871. The next prime is 1572319891. The reversal of 1572319872 is 2789132751.

1572319872 is a `hidden beast` number, since 1 + 572 + 3 + 1 + 9 + 8 + 72 = 666.

1572319872 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 only one way, i.e., 1364268096 + 208051776 = 36936^2 + 14424^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1572319871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 681279 + ... + 683582.

Almost surely, 2^1572319872 is an apocalyptic number.

1572319872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1572319872 is an abundant number, since it is smaller than the sum of its proper divisors (2952197658).

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

1572319872 is a wasteful number, since it uses less digits than its factorization.

1572319872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364881 (or 1364866 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 1572319872 is about 39652.4888500079. The cubic root of 1572319872 is about 1162.8230566595.

The spelling of 1572319872 in words is "one billion, five hundred seventy-two million, three hundred nineteen thousand, eight hundred seventy-two".