28245230 has 16 divisors (see below), whose sum is σ = 54752544. Its totient is φ = 10428960.

The previous prime is 28245227. The next prime is 28245241. The reversal of 28245230 is 3254282.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 28245230.

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, 108506 + ... + 108765.

It is an arithmetic number, because the mean of its divisors is an integer number (3422034).

Almost surely, 2^28245230 is an apocalyptic number.

28245230 is a deficient number, since it is larger than the sum of its proper divisors (26507314).

28245230 is a wasteful number, since it uses less digits than its factorization.

28245230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217291.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 28245230 is about 5314.6241635698. The cubic root of 28245230 is about 304.5428248759.

The spelling of 28245230 in words is "twenty-eight million, two hundred forty-five thousand, two hundred thirty".