64750336 has 72 divisors (see below), whose sum is σ = 154232064. Its totient is φ = 26526720.

The previous prime is 64750327. The next prime is 64750339. The reversal of 64750336 is 63305746.

It is a super-2 number, since 2×64750336² = 8385212024225792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64750339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40431 + ... + 42001.

It is an arithmetic number, because the mean of its divisors is an integer number (2142112).

Almost surely, 2^64750336 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 64750336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77116032).

64750336 is an abundant number, since it is smaller than the sum of its proper divisors (89481728).

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

64750336 is a wasteful number, since it uses less digits than its factorization.

64750336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 64750336 is about 8046.7593477126. The cubic root of 64750336 is about 401.5571304959.

The spelling of 64750336 in words is "sixty-four million, seven hundred fifty thousand, three hundred thirty-six".