28262560 has 24 divisors (see below), whose sum is σ = 66770676. Its totient is φ = 11304960.

The previous prime is 28262537. The next prime is 28262569. The reversal of 28262560 is 6526282.

It can be written as a sum of positive squares in 2 ways, for example, as 28259856 + 2704 = 5316^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (28262569) 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, 88161 + ... + 88480.

Almost surely, 2^28262560 is an apocalyptic number.

28262560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28262560 is an abundant number, since it is smaller than the sum of its proper divisors (38508116).

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

28262560 is a wasteful number, since it uses less digits than its factorization.

28262560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176656 (or 176648 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 28262560 is about 5316.2543204779. The cubic root of 28262560 is about 304.6050967253.

The spelling of 28262560 in words is "twenty-eight million, two hundred sixty-two thousand, five hundred sixty".