64630248 has 64 divisors (see below), whose sum is σ = 171033600. Its totient is φ = 20295360.

The previous prime is 64630211. The next prime is 64630249. The reversal of 64630248 is 84203646.

It is not an unprimeable number, because it can be changed into a prime (64630249) 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, 123315 + ... + 123837.

It is an arithmetic number, because the mean of its divisors is an integer number (2672400).

Almost surely, 2^64630248 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 64630248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85516800).

64630248 is an abundant number, since it is smaller than the sum of its proper divisors (106403352).

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

64630248 is a wasteful number, since it uses less digits than its factorization.

64630248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 64630248 is about 8039.2939988534. The cubic root of 64630248 is about 401.3087300608.

The spelling of 64630248 in words is "sixty-four million, six hundred thirty thousand, two hundred forty-eight".