28883560 has 32 divisors (see below), whose sum is σ = 65147040. Its totient is φ = 11525184.

The previous prime is 28883531. The next prime is 28883563. The reversal of 28883560 is 6538882.

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 (28883563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25159 + ... + 26281.

It is an arithmetic number, because the mean of its divisors is an integer number (2035845).

Almost surely, 2^28883560 is an apocalyptic number.

28883560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28883560 is an abundant number, since it is smaller than the sum of its proper divisors (36263480).

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

28883560 is a wasteful number, since it uses less digits than its factorization.

28883560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 28883560 is about 5374.3427505138. The cubic root of 28883560 is about 306.8199349378.

The spelling of 28883560 in words is "twenty-eight million, eight hundred eighty-three thousand, five hundred sixty".