28520060 has 12 divisors (see below), whose sum is σ = 59892168. Its totient is φ = 11408016.

The previous prime is 28520059. The next prime is 28520099. The reversal of 28520060 is 6002582.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712982 + ... + 713021.

It is an arithmetic number, because the mean of its divisors is an integer number (4991014).

Almost surely, 2^28520060 is an apocalyptic number.

28520060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28520060 is an abundant number, since it is smaller than the sum of its proper divisors (31372108).

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

28520060 is a wasteful number, since it uses less digits than its factorization.

28520060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426012 (or 1426010 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 28520060 is about 5340.4175866687. The cubic root of 28520060 is about 305.5273863961.

The spelling of 28520060 in words is "twenty-eight million, five hundred twenty thousand, sixty".