28974318 has 32 divisors (see below), whose sum is σ = 59000832. Its totient is φ = 9484800.

The previous prime is 28974317. The next prime is 28974343. The reversal of 28974318 is 81347982.

It is a super-2 number, since 2×28974318² = 1679022207130248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28974318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28974317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150030 + ... + 150222.

It is an arithmetic number, because the mean of its divisors is an integer number (1843776).

Almost surely, 2^28974318 is an apocalyptic number.

28974318 is an abundant number, since it is smaller than the sum of its proper divisors (30026514).

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

28974318 is a wasteful number, since it uses less digits than its factorization.

28974318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its digits is 96768, while the sum is 42.

The square root of 28974318 is about 5382.7797651399. The cubic root of 28974318 is about 307.1409624030.

It can be divided in two parts, 28974 and 318, that added together give a palindrome (29292).

The spelling of 28974318 in words is "twenty-eight million, nine hundred seventy-four thousand, three hundred eighteen".