28934464 has 56 divisors (see below), whose sum is σ = 62727840. Its totient is φ = 13161984.

The previous prime is 28934453. The next prime is 28934491. The reversal of 28934464 is 46443982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68847 + ... + 69265.

It is an arithmetic number, because the mean of its divisors is an integer number (1120140).

Almost surely, 2^28934464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28934464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31363920).

28934464 is an abundant number, since it is smaller than the sum of its proper divisors (33793376).

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

28934464 is a wasteful number, since it uses less digits than its factorization.

28934464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 517 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 28934464 is about 5379.0765006644. The cubic root of 28934464 is about 307.0000742713. Note that the first 4 decimals are identical.

The spelling of 28934464 in words is "twenty-eight million, nine hundred thirty-four thousand, four hundred sixty-four".