2638994 has 8 divisors (see below), whose sum is σ = 3965808. Its totient is φ = 1317060.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2638994 is 4998362.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809 + ... + 2435.

It is an arithmetic number, because the mean of its divisors is an integer number (495726).

2^2638994 is an apocalyptic number.

2638994 is a deficient number, since it is larger than the sum of its proper divisors (1326814).

2638994 is a wasteful number, since it uses less digits than its factorization.

2638994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440.

The product of its digits is 93312, while the sum is 41.

The square root of 2638994 is about 1624.4980763300. The cubic root of 2638994 is about 138.1909071028.

The spelling of 2638994 in words is "two million, six hundred thirty-eight thousand, nine hundred ninety-four".