28614560 has 48 divisors (see below), whose sum is σ = 72807336. Its totient is φ = 10564608.

The previous prime is 28614559. The next prime is 28614563. The reversal of 28614560 is 6541682.

It can be written as a sum of positive squares in 4 ways, for example, as 9709456 + 18905104 = 3116^2 + 4348^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (28614563) 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, 4799 + ... + 8958.

Almost surely, 2^28614560 is an apocalyptic number.

28614560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28614560 is an abundant number, since it is smaller than the sum of its proper divisors (44192776).

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

28614560 is a wasteful number, since it uses less digits than its factorization.

28614560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13785 (or 13777 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28614560 is about 5349.2578924557. The cubic root of 28614560 is about 305.8644650173.

The spelling of 28614560 in words is "twenty-eight million, six hundred fourteen thousand, five hundred sixty".