572121430 has 32 divisors (see below), whose sum is σ = 1064689920. Its totient is φ = 221122560.

The previous prime is 572121401. The next prime is 572121443. The reversal of 572121430 is 34121275.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 572121395 and 572121404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301926 + ... + 303814.

It is an arithmetic number, because the mean of its divisors is an integer number (33271560).

Almost surely, 2^572121430 is an apocalyptic number.

572121430 is a deficient number, since it is larger than the sum of its proper divisors (492568490).

572121430 is a wasteful number, since it uses less digits than its factorization.

572121430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 572121430 is about 23919.0599731678. The cubic root of 572121430 is about 830.1617868196.

The spelling of 572121430 in words is "five hundred seventy-two million, one hundred twenty-one thousand, four hundred thirty".