64463630 has 32 divisors (see below), whose sum is σ = 144668160. Its totient is φ = 20092320.

The previous prime is 64463627. The next prime is 64463639. The reversal of 64463630 is 3636446.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64463639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41090 + ... + 42629.

It is an arithmetic number, because the mean of its divisors is an integer number (4520880).

Almost surely, 2^64463630 is an apocalyptic number.

64463630 is an abundant number, since it is smaller than the sum of its proper divisors (80204530).

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

64463630 is a wasteful number, since it uses less digits than its factorization.

64463630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83744.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 64463630 is about 8028.9245855220. The cubic root of 64463630 is about 400.9635727882.

The spelling of 64463630 in words is "sixty-four million, four hundred sixty-three thousand, six hundred thirty".