36623640 has 64 divisors (see below), whose sum is σ = 115660800. Its totient is φ = 9251712.

The previous prime is 36623633. The next prime is 36623641. The reversal of 36623640 is 4632663.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 36623598 and 36623607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36623641) 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, 5752 + ... + 10311.

It is an arithmetic number, because the mean of its divisors is an integer number (1807200).

Almost surely, 2^36623640 is an apocalyptic number.

36623640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36623640 is an abundant number, since it is smaller than the sum of its proper divisors (79037160).

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

36623640 is a wasteful number, since it uses less digits than its factorization.

36623640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16096 (or 16092 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 36623640 is about 6051.7468552477. The cubic root of 36623640 is about 332.0884991730.

The spelling of 36623640 in words is "thirty-six million, six hundred twenty-three thousand, six hundred forty".