2638816 has 12 divisors (see below), whose sum is σ = 5195232. Its totient is φ = 1319392.

The previous prime is 2638793. The next prime is 2638841. The reversal of 2638816 is 6188362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41200 + ... + 41263.

It is an arithmetic number, because the mean of its divisors is an integer number (432936).

2^2638816 is an apocalyptic number.

It is an amenable number.

2638816 is a deficient number, since it is larger than the sum of its proper divisors (2556416).

2638816 is an equidigital number, since it uses as much as digits as its factorization.

2638816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82473 (or 82465 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 2638816 is about 1624.4432892533. The cubic root of 2638816 is about 138.1878000432.

The spelling of 2638816 in words is "two million, six hundred thirty-eight thousand, eight hundred sixteen".