2638995 has 32 divisors (see below), whose sum is σ = 4561920. Its totient is φ = 1297920.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2638995 is 5998362.

It is not a de Polignac number, because 2638995 - 2⁶ = 2638931 is a prime.

It is a super-2 number, since 2×2638995² = 13928589220050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20080 + ... + 20210.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^2638995 is an apocalyptic number.

2638995 is a deficient number, since it is larger than the sum of its proper divisors (1922925).

2638995 is a wasteful number, since it uses less digits than its factorization.

2638995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235.

The product of its digits is 116640, while the sum is 42.

The square root of 2638995 is about 1624.4983841174. The cubic root of 2638995 is about 138.1909245578.

The spelling of 2638995 in words is "two million, six hundred thirty-eight thousand, nine hundred ninety-five".