64629488 has 120 divisors (see below), whose sum is σ = 166239360. Its totient is φ = 23760000.

The previous prime is 64629449. The next prime is 64629503. The reversal of 64629488 is 88492646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257363 + ... + 257613.

It is an arithmetic number, because the mean of its divisors is an integer number (1385328).

Almost surely, 2^64629488 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 64629488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83119680).

64629488 is an abundant number, since it is smaller than the sum of its proper divisors (101609872).

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

64629488 is a wasteful number, since it uses less digits than its factorization.

64629488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 290 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 64629488 is about 8039.2467308822. The cubic root of 64629488 is about 401.3071570315.

The spelling of 64629488 in words is "sixty-four million, six hundred twenty-nine thousand, four hundred eighty-eight".