2638028 has 12 divisors (see below), whose sum is σ = 4634952. Its totient is φ = 1313760.

The previous prime is 2638003. The next prime is 2638039. The reversal of 2638028 is 8208362.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

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, 50 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (386246).

2^2638028 is an apocalyptic number.

It is an amenable number.

2638028 is a deficient number, since it is larger than the sum of its proper divisors (1996924).

2638028 is a wasteful number, since it uses less digits than its factorization.

2638028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632 (or 2630 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2638028 is about 1624.2007265114. The cubic root of 2638028 is about 138.1740435167.

The spelling of 2638028 in words is "two million, six hundred thirty-eight thousand, twenty-eight".