2638426 has 8 divisors (see below), whose sum is σ = 4523040. Its totient is φ = 1130748.

The previous prime is 2638411. The next prime is 2638469. The reversal of 2638426 is 6248362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2638426² = 13922583514952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94216 + ... + 94243.

It is an arithmetic number, because the mean of its divisors is an integer number (565380).

2^2638426 is an apocalyptic number.

2638426 is a deficient number, since it is larger than the sum of its proper divisors (1884614).

2638426 is a wasteful number, since it uses less digits than its factorization.

2638426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188468.

The product of its digits is 13824, while the sum is 31.

The square root of 2638426 is about 1624.3232436926. The cubic root of 2638426 is about 138.1809919524.

The spelling of 2638426 in words is "two million, six hundred thirty-eight thousand, four hundred twenty-six".