28338994 has 16 divisors (see below), whose sum is σ = 45593280. Its totient is φ = 13169520.

The previous prime is 28338943. The next prime is 28339001. The reversal of 28338994 is 49983382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5022 + ... + 9049.

It is an arithmetic number, because the mean of its divisors is an integer number (2849580).

Almost surely, 2^28338994 is an apocalyptic number.

28338994 is a deficient number, since it is larger than the sum of its proper divisors (17254286).

28338994 is a wasteful number, since it uses less digits than its factorization.

28338994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145.

The product of its digits is 373248, while the sum is 46.

The square root of 28338994 is about 5323.4381747138. The cubic root of 28338994 is about 304.8794435305.

The spelling of 28338994 in words is "twenty-eight million, three hundred thirty-eight thousand, nine hundred ninety-four".