28974460 has 48 divisors (see below), whose sum is σ = 66528000. Its totient is φ = 10552320.

The previous prime is 28974431. The next prime is 28974467. The reversal of 28974460 is 6447982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28974467) 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, 9166 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (1386000).

Almost surely, 2^28974460 is an apocalyptic number.

28974460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28974460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33264000).

28974460 is an abundant number, since it is smaller than the sum of its proper divisors (37553540).

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

28974460 is a wasteful number, since it uses less digits than its factorization.

28974460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806 (or 2804 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28974460 is about 5382.7929553346. The cubic root of 28974460 is about 307.1414641571.

The spelling of 28974460 in words is "twenty-eight million, nine hundred seventy-four thousand, four hundred sixty".