64642364 has 36 divisors (see below), whose sum is σ = 121203600. Its totient is φ = 30159360.

The previous prime is 64642321. The next prime is 64642379. The reversal of 64642364 is 46324646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229904 + ... + 230184.

Almost surely, 2^64642364 is an apocalyptic number.

It is an amenable number.

64642364 is a deficient number, since it is larger than the sum of its proper divisors (56561236).

64642364 is a wasteful number, since it uses less digits than its factorization.

64642364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 499 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

The square root of 64642364 is about 8040.0475122974. The cubic root of 64642364 is about 401.3338057951. Note that the first 3 decimals are identical.

The spelling of 64642364 in words is "sixty-four million, six hundred forty-two thousand, three hundred sixty-four".