36320640 has 64 divisors (see below), whose sum is σ = 115778160. Its totient is φ = 9684992.

The previous prime is 36320621. The next prime is 36320651. The reversal of 36320640 is 4602363.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 36320640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7539 + ... + 11378.

Almost surely, 2^36320640 is an apocalyptic number.

36320640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36320640 is an abundant number, since it is smaller than the sum of its proper divisors (79457520).

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

36320640 is a wasteful number, since it uses less digits than its factorization.

36320640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18939 (or 18927 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 36320640 is about 6026.6607669588. The cubic root of 36320640 is about 331.1701342997.

The spelling of 36320640 in words is "thirty-six million, three hundred twenty thousand, six hundred forty".