8380638 has 32 divisors (see below), whose sum is σ = 21285120. Its totient is φ = 2394360.

The previous prime is 8380621. The next prime is 8380649. The reversal of 8380638 is 8360838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10708 + ... + 11463.

It is an arithmetic number, because the mean of its divisors is an integer number (665160).

Almost surely, 2^8380638 is an apocalyptic number.

8380638 is an abundant number, since it is smaller than the sum of its proper divisors (12904482).

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

8380638 is a wasteful number, since it uses less digits than its factorization.

8380638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22189 (or 22183 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 8380638 is about 2894.9331598502. The cubic root of 8380638 is about 203.1229649658.

The spelling of 8380638 in words is "eight million, three hundred eighty thousand, six hundred thirty-eight".