64418072 has 8 divisors (see below), whose sum is σ = 120783900. Its totient is φ = 32209032.

The previous prime is 64418063. The next prime is 64418129. The reversal of 64418072 is 27081446.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4026122 + ... + 4026137.

Almost surely, 2^64418072 is an apocalyptic number.

It is an amenable number.

64418072 is a deficient number, since it is larger than the sum of its proper divisors (56365828).

64418072 is a wasteful number, since it uses less digits than its factorization.

64418072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052265 (or 8052261 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 64418072 is about 8026.0869668849. The cubic root of 64418072 is about 400.8690936563.

The spelling of 64418072 in words is "sixty-four million, four hundred eighteen thousand, seventy-two".