28492560 has 100 divisors (see below), whose sum is σ = 98981388. Its totient is φ = 7596288.

The previous prime is 28492559. The next prime is 28492589. The reversal of 28492560 is 6529482.

It is a happy number.

28492560 is a `hidden beast` number, since 2 + 8 + 4 + 92 + 560 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11943936 + 16548624 = 3456^2 + 4068^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4282 + ... + 8678.

Almost surely, 2^28492560 is an apocalyptic number.

28492560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28492560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49490694).

28492560 is an abundant number, since it is smaller than the sum of its proper divisors (70488828).

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

28492560 is a wasteful number, since it uses less digits than its factorization.

28492560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422 (or 4407 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28492560 is about 5337.8422606892. The cubic root of 28492560 is about 305.4291548932.

The spelling of 28492560 in words is "twenty-eight million, four hundred ninety-two thousand, five hundred sixty".