28800398 has 32 divisors (see below), whose sum is σ = 48591360. Its totient is φ = 12692160.

The previous prime is 28800377. The next prime is 28800403. The reversal of 28800398 is 89300882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126761 + ... + 126987.

It is an arithmetic number, because the mean of its divisors is an integer number (1518480).

Almost surely, 2^28800398 is an apocalyptic number.

28800398 is a deficient number, since it is larger than the sum of its proper divisors (19790962).

28800398 is a wasteful number, since it uses less digits than its factorization.

28800398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 28800398 is about 5366.6002273320. The cubic root of 28800398 is about 306.5251849470.

The spelling of 28800398 in words is "twenty-eight million, eight hundred thousand, three hundred ninety-eight".