572639942 has 8 divisors (see below), whose sum is σ = 981668496. Its totient is φ = 245417112.

The previous prime is 572639927. The next prime is 572639971. The reversal of 572639942 is 249936275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×572639942³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20451413 + ... + 20451440.

It is an arithmetic number, because the mean of its divisors is an integer number (122708562).

Almost surely, 2^572639942 is an apocalyptic number.

572639942 is a deficient number, since it is larger than the sum of its proper divisors (409028554).

572639942 is a wasteful number, since it uses less digits than its factorization.

572639942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40902862.

The product of its digits is 816480, while the sum is 47.

The square root of 572639942 is about 23929.8964059605. The cubic root of 572639942 is about 830.4125021707.

The spelling of 572639942 in words is "five hundred seventy-two million, six hundred thirty-nine thousand, nine hundred forty-two".