4638366 has 12 divisors (see below), whose sum is σ = 10049832. Its totient is φ = 1546116.

The previous prime is 4638353. The next prime is 4638377. The reversal of 4638366 is 6638364.

It is a self number, because there is not a number n which added to its sum of digits gives 4638366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128826 + ... + 128861.

It is an arithmetic number, because the mean of its divisors is an integer number (837486).

Almost surely, 2^4638366 is an apocalyptic number.

4638366 is an abundant number, since it is smaller than the sum of its proper divisors (5411466).

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

4638366 is a wasteful number, since it uses less digits than its factorization.

4638366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257695 (or 257692 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 4638366 is about 2153.6866067281. The cubic root of 4638366 is about 166.7714372361.

The spelling of 4638366 in words is "four million, six hundred thirty-eight thousand, three hundred sixty-six".