642682596 has 12 divisors (see below), whose sum is σ = 1499592752. Its totient is φ = 214227528.

The previous prime is 642682591. The next prime is 642682631. The reversal of 642682596 is 695286246.

It is a happy number.

642682596 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (642682591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26778430 + ... + 26778453.

Almost surely, 2^642682596 is an apocalyptic number.

It is an amenable number.

642682596 is an abundant number, since it is smaller than the sum of its proper divisors (856910156).

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

642682596 is a wasteful number, since it uses less digits than its factorization.

642682596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53556890 (or 53556888 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 642682596 is about 25351.1852977331. The cubic root of 642682596 is about 862.9762555192.

The spelling of 642682596 in words is "six hundred forty-two million, six hundred eighty-two thousand, five hundred ninety-six".