28799404 has 12 divisors (see below), whose sum is σ = 52590384. Its totient is φ = 13773584.

The previous prime is 28799401. The next prime is 28799417. The reversal of 28799404 is 40499782.

It is not an unprimeable number, because it can be changed into a prime (28799401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156427 + ... + 156610.

It is an arithmetic number, because the mean of its divisors is an integer number (4382532).

Almost surely, 2^28799404 is an apocalyptic number.

It is an amenable number.

28799404 is a deficient number, since it is larger than the sum of its proper divisors (23790980).

28799404 is a wasteful number, since it uses less digits than its factorization.

28799404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313064 (or 313062 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 28799404 is about 5366.5076166908. The cubic root of 28799404 is about 306.5216584964.

The spelling of 28799404 in words is "twenty-eight million, seven hundred ninety-nine thousand, four hundred four".