28461570 has 32 divisors (see below), whose sum is σ = 72327168. Its totient is φ = 7143168.

The previous prime is 28461569. The next prime is 28461611. The reversal of 28461570 is 7516482.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27394 + ... + 28413.

It is an arithmetic number, because the mean of its divisors is an integer number (2260224).

Almost surely, 2^28461570 is an apocalyptic number.

28461570 is an abundant number, since it is smaller than the sum of its proper divisors (43865598).

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

28461570 is a wasteful number, since it uses less digits than its factorization.

28461570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55834.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28461570 is about 5334.9386125803. The cubic root of 28461570 is about 305.3183811425.

The spelling of 28461570 in words is "twenty-eight million, four hundred sixty-one thousand, five hundred seventy".