64138604 has 24 divisors (see below), whose sum is σ = 122228400. Its totient is φ = 29332800.

The previous prime is 64138601. The next prime is 64138619. The reversal of 64138604 is 40683146.

It is a super-2 number, since 2×64138604² = 8227521046137632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64138601) 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, 12347 + ... + 16754.

It is an arithmetic number, because the mean of its divisors is an integer number (5092850).

Almost surely, 2^64138604 is an apocalyptic number.

It is an amenable number.

64138604 is a deficient number, since it is larger than the sum of its proper divisors (58089796).

64138604 is a wasteful number, since it uses less digits than its factorization.

64138604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29153 (or 29151 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 64138604 is about 8008.6580648695. The cubic root of 64138604 is about 400.2885501303.

The spelling of 64138604 in words is "sixty-four million, one hundred thirty-eight thousand, six hundred four".