64406364 has 36 divisors (see below), whose sum is σ = 165189192. Its totient is φ = 19516640.

The previous prime is 64406359. The next prime is 64406369. The reversal of 64406364 is 46360446.

It is an interprime number because it is at equal distance from previous prime (64406359) and next prime (64406369).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64406369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20727 + ... + 23630.

Almost surely, 2^64406364 is an apocalyptic number.

It is an amenable number.

64406364 is an abundant number, since it is smaller than the sum of its proper divisors (100782828).

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

64406364 is a wasteful number, since it uses less digits than its factorization.

64406364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44386 (or 44373 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 64406364 is about 8025.3575621277. The cubic root of 64406364 is about 400.8448061669.

The spelling of 64406364 in words is "sixty-four million, four hundred six thousand, three hundred sixty-four".