642076508 has 12 divisors (see below), whose sum is σ = 1125983040. Its totient is φ = 320367072.

The previous prime is 642076489. The next prime is 642076517. The reversal of 642076508 is 805670246.

It is a happy number.

642076508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 165641 + ... + 169472.

It is an arithmetic number, because the mean of its divisors is an integer number (93831920).

Almost surely, 2^642076508 is an apocalyptic number.

It is an amenable number.

642076508 is a deficient number, since it is larger than the sum of its proper divisors (483906532).

642076508 is a wasteful number, since it uses less digits than its factorization.

642076508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335596 (or 335594 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 642076508 is about 25339.2286386149. The cubic root of 642076508 is about 862.7048908459.

It can be divided in two parts, 6420 and 76508, that added together give a palindrome (82928).

The spelling of 642076508 in words is "six hundred forty-two million, seventy-six thousand, five hundred eight".