642573058 has 16 divisors (see below), whose sum is σ = 980713440. Its totient is φ = 315713376.

The previous prime is 642573047. The next prime is 642573059. The reversal of 642573058 is 850375246.

It is a super-3 number, since 3×642573058³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 642573058.

It is not an unprimeable number, because it can be changed into a prime (642573059) 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, 17941 + ... + 40087.

It is an arithmetic number, because the mean of its divisors is an integer number (61294590).

Almost surely, 2^642573058 is an apocalyptic number.

642573058 is a deficient number, since it is larger than the sum of its proper divisors (338140382).

642573058 is a wasteful number, since it uses less digits than its factorization.

642573058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22401.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 642573058 is about 25349.0247938653. The cubic root of 642573058 is about 862.9272245436.

The spelling of 642573058 in words is "six hundred forty-two million, five hundred seventy-three thousand, fifty-eight".