64256630 has 8 divisors (see below), whose sum is σ = 115661952. Its totient is φ = 25702648.

The previous prime is 64256611. The next prime is 64256639. The reversal of 64256630 is 3665246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64256639) 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, 3212822 + ... + 3212841.

It is an arithmetic number, because the mean of its divisors is an integer number (14457744).

Almost surely, 2^64256630 is an apocalyptic number.

64256630 is a deficient number, since it is larger than the sum of its proper divisors (51405322).

64256630 is a wasteful number, since it uses less digits than its factorization.

64256630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425670.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 64256630 is about 8016.0233283094. The cubic root of 64256630 is about 400.5339328056.

The spelling of 64256630 in words is "sixty-four million, two hundred fifty-six thousand, six hundred thirty".