64130464 has 24 divisors (see below), whose sum is σ = 126584640. Its totient is φ = 31982016.

The previous prime is 64130461. The next prime is 64130471. The reversal of 64130464 is 46403146.

It is a happy number.

It is a super-5 number, since 5×64130464⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (64130461) 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, 11017 + ... + 15799.

It is an arithmetic number, because the mean of its divisors is an integer number (5274360).

Almost surely, 2^64130464 is an apocalyptic number.

It is an amenable number.

64130464 is a deficient number, since it is larger than the sum of its proper divisors (62454176).

64130464 is a wasteful number, since it uses less digits than its factorization.

64130464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5204 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 64130464 is about 8008.1498487478. The cubic root of 64130464 is about 400.2716155208.

The spelling of 64130464 in words is "sixty-four million, one hundred thirty thousand, four hundred sixty-four".