28732344 has 16 divisors (see below), whose sum is σ = 71830920. Its totient is φ = 9577440.

The previous prime is 28732339. The next prime is 28732373. The reversal of 28732344 is 44323782.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598567 + ... + 598614.

Almost surely, 2^28732344 is an apocalyptic number.

28732344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28732344 is an abundant number, since it is smaller than the sum of its proper divisors (43098576).

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

28732344 is a wasteful number, since it uses less digits than its factorization.

28732344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197190 (or 1197186 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 28732344 is about 5360.2559640375. The cubic root of 28732344 is about 306.2835596154.

The spelling of 28732344 in words is "twenty-eight million, seven hundred thirty-two thousand, three hundred forty-four".