64466460 has 72 divisors (see below), whose sum is σ = 200119920. Its totient is φ = 16789248.

The previous prime is 64466459. The next prime is 64466483. The reversal of 64466460 is 6466446.

It is a happy number.

64466460 is a `hidden beast` number, since 6 + 4 + 4 + 6 + 646 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 3576 + ... + 11904.

Almost surely, 2^64466460 is an apocalyptic number.

64466460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64466460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100059960).

64466460 is an abundant number, since it is smaller than the sum of its proper divisors (135653460).

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

64466460 is a wasteful number, since it uses less digits than its factorization.

64466460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387 (or 8382 counting only the distinct ones).

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

The square root of 64466460 is about 8029.1008213872. The cubic root of 64466460 is about 400.9694402326.

The spelling of 64466460 in words is "sixty-four million, four hundred sixty-six thousand, four hundred sixty".