64229956 has 48 divisors (see below), whose sum is σ = 136259200. Its totient is φ = 25878528.

The previous prime is 64229947. The next prime is 64229969. The reversal of 64229956 is 65992246.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83140 + ... + 83908.

Almost surely, 2^64229956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64229956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68129600).

64229956 is an abundant number, since it is smaller than the sum of its proper divisors (72029244).

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

64229956 is a wasteful number, since it uses less digits than its factorization.

64229956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 64229956 is about 8014.3593630433. The cubic root of 64229956 is about 400.4785023605.

The spelling of 64229956 in words is "sixty-four million, two hundred twenty-nine thousand, nine hundred fifty-six".