64604466 has 48 divisors (see below), whose sum is σ = 145969824. Its totient is φ = 21415104.

The previous prime is 64604453. The next prime is 64604497. The reversal of 64604466 is 66440646.

It is a happy number.

64604466 is a `hidden beast` number, since 6 + 4 + 604 + 46 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64604466.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148986 + ... + 149418.

It is an arithmetic number, because the mean of its divisors is an integer number (3041038).

Almost surely, 2^64604466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64604466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72984912).

64604466 is an abundant number, since it is smaller than the sum of its proper divisors (81365358).

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

64604466 is a wasteful number, since it uses less digits than its factorization.

64604466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 64604466 is about 8037.6903398924. The cubic root of 64604466 is about 401.2553602219.

The spelling of 64604466 in words is "sixty-four million, six hundred four thousand, four hundred sixty-six".