28342170 has 32 divisors (see below), whose sum is σ = 75579840. Its totient is φ = 7557840.

The previous prime is 28342163. The next prime is 28342189. The reversal of 28342170 is 7124382.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 52216 + ... + 52755.

It is an arithmetic number, because the mean of its divisors is an integer number (2361870).

Almost surely, 2^28342170 is an apocalyptic number.

28342170 is an abundant number, since it is smaller than the sum of its proper divisors (47237670).

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

28342170 is a wasteful number, since it uses less digits than its factorization.

28342170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104987 (or 104981 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 28342170 is about 5323.7364698114. The cubic root of 28342170 is about 304.8908325603.

The spelling of 28342170 in words is "twenty-eight million, three hundred forty-two thousand, one hundred seventy".