64750740 has 48 divisors (see below), whose sum is σ = 186208512. Its totient is φ = 16799616.

The previous prime is 64750709. The next prime is 64750753. The reversal of 64750740 is 4705746.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12364 + ... + 16803.

It is an arithmetic number, because the mean of its divisors is an integer number (3879344).

Almost surely, 2^64750740 is an apocalyptic number.

64750740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64750740 is an abundant number, since it is smaller than the sum of its proper divisors (121457772).

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

64750740 is a wasteful number, since it uses less digits than its factorization.

64750740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29216 (or 29214 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 64750740 is about 8046.7844509469. The cubic root of 64750740 is about 401.5579656460.

The spelling of 64750740 in words is "sixty-four million, seven hundred fifty thousand, seven hundred forty".