28975360 has 36 divisors (see below), whose sum is σ = 69408108. Its totient is φ = 11589632.

The previous prime is 28975343. The next prime is 28975367. The reversal of 28975360 is 6357982.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 19927296 = 3008^2 + 4464^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (28975367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10039 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (1928003).

Almost surely, 2^28975360 is an apocalyptic number.

28975360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28975360 is an abundant number, since it is smaller than the sum of its proper divisors (40432748).

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

28975360 is an equidigital number, since it uses as much as digits as its factorization.

28975360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22658 (or 22644 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 28975360 is about 5382.8765544084. The cubic root of 28975360 is about 307.1446442503.

The spelling of 28975360 in words is "twenty-eight million, nine hundred seventy-five thousand, three hundred sixty".