2638395 has 12 divisors (see below), whose sum is σ = 4573296. Its totient is φ = 1407120.

The previous prime is 2638381. The next prime is 2638403. The reversal of 2638395 is 5938362.

2638395 is a `hidden beast` number, since 263 + 8 + 395 = 666.

It is not a de Polignac number, because 2638395 - 2⁶ = 2638331 is a prime.

It is a super-2 number, since 2×2638395² = 13922256352050, which contains 22 as substring.

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, 29271 + ... + 29360.

It is an arithmetic number, because the mean of its divisors is an integer number (381108).

2^2638395 is an apocalyptic number.

2638395 is a deficient number, since it is larger than the sum of its proper divisors (1934901).

2638395 is a wasteful number, since it uses less digits than its factorization.

2638395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58642 (or 58639 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2638395 is about 1624.3137012289. The cubic root of 2638395 is about 138.1804507677.

The spelling of 2638395 in words is "two million, six hundred thirty-eight thousand, three hundred ninety-five".