28474312 has 64 divisors (see below), whose sum is σ = 59371200. Its totient is φ = 12752640.

The previous prime is 28474309. The next prime is 28474319. The reversal of 28474312 is 21347482.

It is not an unprimeable number, because it can be changed into a prime (28474319) 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, 343023 + ... + 343105.

It is an arithmetic number, because the mean of its divisors is an integer number (927675).

Almost surely, 2^28474312 is an apocalyptic number.

It is an amenable number.

28474312 is an abundant number, since it is smaller than the sum of its proper divisors (30896888).

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

28474312 is a wasteful number, since it uses less digits than its factorization.

28474312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 202 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 28474312 is about 5336.1326820086. The cubic root of 28474312 is about 305.3639371489.

It can be divided in two parts, 28474 and 312, that multiplied together give a palindrome (8883888).

The spelling of 28474312 in words is "twenty-eight million, four hundred seventy-four thousand, three hundred twelve".