64788942 has 16 divisors (see below), whose sum is σ = 130251600. Its totient is φ = 21484032.

The previous prime is 64788931. The next prime is 64788959. The reversal of 64788942 is 24988746.

It is a junction number, because it is equal to n+sod(n) for n = 64788891 and 64788900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26817 + ... + 29132.

It is an arithmetic number, because the mean of its divisors is an integer number (8140725).

Almost surely, 2^64788942 is an apocalyptic number.

64788942 is an abundant number, since it is smaller than the sum of its proper divisors (65462658).

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

64788942 is a wasteful number, since it uses less digits than its factorization.

64788942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56147.

The product of its digits is 774144, while the sum is 48.

The square root of 64788942 is about 8049.1578441474. The cubic root of 64788942 is about 401.6369212509.

The spelling of 64788942 in words is "sixty-four million, seven hundred eighty-eight thousand, nine hundred forty-two".