28032960 has 56 divisors (see below), whose sum is σ = 89007696. Its totient is φ = 7475200.

The previous prime is 28032899. The next prime is 28032967. The reversal of 28032960 is 6923082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28032967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13641 + ... + 15560.

Almost surely, 2^28032960 is an apocalyptic number.

28032960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28032960 is an abundant number, since it is smaller than the sum of its proper divisors (60974736).

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

28032960 is a wasteful number, since it uses less digits than its factorization.

28032960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29221 (or 29211 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 28032960 is about 5294.6161333944. The cubic root of 28032960 is about 303.7780004332.

The spelling of 28032960 in words is "twenty-eight million, thirty-two thousand, nine hundred sixty".