64446412 has 12 divisors (see below), whose sum is σ = 113944600. Its totient is φ = 31890816.

The previous prime is 64446409. The next prime is 64446419. The reversal of 64446412 is 21464446.

It is not an unprimeable number, because it can be changed into a prime (64446419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82662 + ... + 83437.

Almost surely, 2^64446412 is an apocalyptic number.

It is an amenable number.

64446412 is a deficient number, since it is larger than the sum of its proper divisors (49498188).

64446412 is a wasteful number, since it uses less digits than its factorization.

64446412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166200 (or 166198 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 64446412 is about 8027.8522657059. The cubic root of 64446412 is about 400.9278709744.

The spelling of 64446412 in words is "sixty-four million, four hundred forty-six thousand, four hundred twelve".