1572215120 has 40 divisors (see below), whose sum is σ = 4177601664. Its totient is φ = 539044992.

The previous prime is 1572215081. The next prime is 1572215129. The reversal of 1572215120 is 215122751.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1572215120² = 4943720767113228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1572215120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572215129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403204 + ... + 1404323.

Almost surely, 2^1572215120 is an apocalyptic number.

1572215120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1572215120 is an abundant number, since it is smaller than the sum of its proper divisors (2605386544).

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

1572215120 is a wasteful number, since it uses less digits than its factorization.

1572215120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807547 (or 2807541 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 1572215120 is about 39651.1679525333. The cubic root of 1572215120 is about 1162.7972326636.

Adding to 1572215120 its reverse (215122751), we get a palindrome (1787337871).

The spelling of 1572215120 in words is "one billion, five hundred seventy-two million, two hundred fifteen thousand, one hundred twenty".