4636640 has 24 divisors (see below), whose sum is σ = 10954440. Its totient is φ = 1854592.

The previous prime is 4636613. The next prime is 4636651. The reversal of 4636640 is 466364.

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 3 ways as a sum of consecutive naturals, for example, 14330 + ... + 14649.

It is an arithmetic number, because the mean of its divisors is an integer number (456435).

Almost surely, 2^4636640 is an apocalyptic number.

4636640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4636640 is an abundant number, since it is smaller than the sum of its proper divisors (6317800).

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

4636640 is a wasteful number, since it uses less digits than its factorization.

4636640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28994 (or 28986 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 4636640 is about 2153.2858611898. The cubic root of 4636640 is about 166.7507486853.

The spelling of 4636640 in words is "four million, six hundred thirty-six thousand, six hundred forty".