28469994 has 16 divisors (see below), whose sum is σ = 65074368. Its totient is φ = 8134272.

The previous prime is 28469989. The next prime is 28470007. The reversal of 28469994 is 49996482.

It is a happy number.

It is a Curzon number.

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, 338887 + ... + 338970.

It is an arithmetic number, because the mean of its divisors is an integer number (4067148).

Almost surely, 2^28469994 is an apocalyptic number.

28469994 is an abundant number, since it is smaller than the sum of its proper divisors (36604374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28469994 is a wasteful number, since it uses less digits than its factorization.

28469994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677869.

The product of its digits is 1119744, while the sum is 51.

The square root of 28469994 is about 5335.7280665341. The cubic root of 28469994 is about 305.3485006841.

The spelling of 28469994 in words is "twenty-eight million, four hundred sixty-nine thousand, nine hundred ninety-four".