28801360 has 40 divisors (see below), whose sum is σ = 76530816. Its totient is φ = 9874560.

The previous prime is 28801351. The next prime is 28801361. The reversal of 28801360 is 6310882.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28801361) 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, 25156 + ... + 26275.

Almost surely, 2^28801360 is an apocalyptic number.

28801360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28801360 is an abundant number, since it is smaller than the sum of its proper divisors (47729456).

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

28801360 is a wasteful number, since it uses less digits than its factorization.

28801360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51451 (or 51445 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28801360 is about 5366.6898550224. The cubic root of 28801360 is about 306.5285977927.

It can be divided in two parts, 28801 and 360, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28801360 in words is "twenty-eight million, eight hundred one thousand, three hundred sixty".