64229988 has 24 divisors (see below), whose sum is σ = 150025792. Its totient is φ = 21387744.

The previous prime is 64229969. The next prime is 64229989. The reversal of 64229988 is 88992246.

It is not an unprimeable number, because it can be changed into a prime (64229989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12681 + ... + 17007.

Almost surely, 2^64229988 is an apocalyptic number.

It is an amenable number.

64229988 is an abundant number, since it is smaller than the sum of its proper divisors (85795804).

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

64229988 is a wasteful number, since it uses less digits than its factorization.

64229988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571 (or 5569 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 64229988 is about 8014.3613594597. The cubic root of 64229988 is about 400.4785688679.

The spelling of 64229988 in words is "sixty-four million, two hundred twenty-nine thousand, nine hundred eighty-eight".