2638998 has 24 divisors (see below), whose sum is σ = 5749536. Its totient is φ = 874800.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2638998 is 8998362.

2638998 is a `hidden beast` number, since 2 + 638 + 9 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4608 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (239564).

2^2638998 is an apocalyptic number.

2638998 is an abundant number, since it is smaller than the sum of its proper divisors (3110538).

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

2638998 is a wasteful number, since it uses less digits than its factorization.

2638998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 817 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 2638998 is about 1624.4993074791. The cubic root of 2638998 is about 138.1909769227.

It can be divided in two parts, 263 and 8998, that added together give a cube (9261 = 21³).

The spelling of 2638998 in words is "two million, six hundred thirty-eight thousand, nine hundred ninety-eight".