572691990 has 64 divisors (see below), whose sum is σ = 1489118400. Its totient is φ = 140954112.

The previous prime is 572691941. The next prime is 572691997. The reversal of 572691990 is 99196275.

It is a super-2 number, since 2×572691990² = 655952230820320200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572691997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61566 + ... + 70254.

It is an arithmetic number, because the mean of its divisors is an integer number (23267475).

Almost surely, 2^572691990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 572691990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744559200).

572691990 is an abundant number, since it is smaller than the sum of its proper divisors (916426410).

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

572691990 is a wasteful number, since it uses less digits than its factorization.

572691990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8738 (or 8712 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 572691990 is about 23930.9838911817. The cubic root of 572691990 is about 830.4376605046.

The spelling of 572691990 in words is "five hundred seventy-two million, six hundred ninety-one thousand, nine hundred ninety".