572434391 has 4 divisors (see below), whose sum is σ = 580276032. Its totient is φ = 564592752.

The previous prime is 572434381. The next prime is 572434409. The reversal of 572434391 is 193434275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572434391 is a prime.

It is a super-2 number, since 2×572434391² = 655362263999081762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572434301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3920711 + ... + 3920856.

It is an arithmetic number, because the mean of its divisors is an integer number (145069008).

Almost surely, 2^572434391 is an apocalyptic number.

572434391 is a deficient number, since it is larger than the sum of its proper divisors (7841641).

572434391 is an equidigital number, since it uses as much as digits as its factorization.

572434391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841640.

The product of its digits is 90720, while the sum is 38.

The square root of 572434391 is about 23925.6011627712. The cubic root of 572434391 is about 830.3131305090.

The spelling of 572434391 in words is "five hundred seventy-two million, four hundred thirty-four thousand, three hundred ninety-one".