28542460 has 24 divisors (see below), whose sum is σ = 60071760. Its totient is φ = 11391744.

The previous prime is 28542457. The next prime is 28542491. The reversal of 28542460 is 6424582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9636 + ... + 12244.

It is an arithmetic number, because the mean of its divisors is an integer number (2502990).

Almost surely, 2^28542460 is an apocalyptic number.

28542460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28542460 is an abundant number, since it is smaller than the sum of its proper divisors (31529300).

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

28542460 is a wasteful number, since it uses less digits than its factorization.

28542460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165 (or 3163 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 28542460 is about 5342.5143893115. The cubic root of 28542460 is about 305.6073537653.

The spelling of 28542460 in words is "twenty-eight million, five hundred forty-two thousand, four hundred sixty".