64374020 has 24 divisors (see below), whose sum is σ = 138063744. Its totient is φ = 25201376.

The previous prime is 64374017. The next prime is 64374031. The reversal of 64374020 is 2047346.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33302 + ... + 35181.

It is an arithmetic number, because the mean of its divisors is an integer number (5752656).

Almost surely, 2^64374020 is an apocalyptic number.

It is an amenable number.

64374020 is an abundant number, since it is smaller than the sum of its proper divisors (73689724).

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

64374020 is a wasteful number, since it uses less digits than its factorization.

64374020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68539 (or 68537 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 64374020 is about 8023.3421963668. The cubic root of 64374020 is about 400.7776953284. Note that the first 3 decimals are identical.

The spelling of 64374020 in words is "sixty-four million, three hundred seventy-four thousand, twenty".