64365040 has 40 divisors (see below), whose sum is σ = 156159648. Its totient is φ = 24625920.

The previous prime is 64365001. The next prime is 64365053. The reversal of 64365040 is 4056346.

64365040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15651 + ... + 19330.

Almost surely, 2^64365040 is an apocalyptic number.

It is an amenable number.

64365040 is an abundant number, since it is smaller than the sum of its proper divisors (91794608).

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

64365040 is a wasteful number, since it uses less digits than its factorization.

64365040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35017 (or 35011 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 64365040 is about 8022.7825596859. The cubic root of 64365040 is about 400.7590586637.

It can be divided in two parts, 6436 and 5040, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 64365040 in words is "sixty-four million, three hundred sixty-five thousand, forty".