4638380 has 12 divisors (see below), whose sum is σ = 9740640. Its totient is φ = 1855344.

The previous prime is 4638377. The next prime is 4638397. The reversal of 4638380 is 838364.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 115940 + ... + 115979.

It is an arithmetic number, because the mean of its divisors is an integer number (811720).

Almost surely, 2^4638380 is an apocalyptic number.

It is an amenable number.

4638380 is an abundant number, since it is smaller than the sum of its proper divisors (5102260).

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

4638380 is a wasteful number, since it uses less digits than its factorization.

4638380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231928 (or 231926 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4638380 is about 2153.6898569664. The cubic root of 4638380 is about 166.7716050249.

The spelling of 4638380 in words is "four million, six hundred thirty-eight thousand, three hundred eighty".