28118374 has 32 divisors (see below), whose sum is σ = 47791296. Its totient is φ = 12334080.

The previous prime is 28118369. The next prime is 28118383. The reversal of 28118374 is 47381182.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31624 + ... + 32500.

It is an arithmetic number, because the mean of its divisors is an integer number (1493478).

Almost surely, 2^28118374 is an apocalyptic number.

28118374 is a deficient number, since it is larger than the sum of its proper divisors (19672922).

28118374 is a wasteful number, since it uses less digits than its factorization.

28118374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its digits is 10752, while the sum is 34.

The square root of 28118374 is about 5302.6761168301. The cubic root of 28118374 is about 304.0862160242.

The spelling of 28118374 in words is "twenty-eight million, one hundred eighteen thousand, three hundred seventy-four".