28258902 has 32 divisors (see below), whose sum is σ = 71769600. Its totient is φ = 8073864.

The previous prime is 28258883. The next prime is 28258903. The reversal of 28258902 is 20985282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28258903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37002 + ... + 37757.

It is an arithmetic number, because the mean of its divisors is an integer number (2242800).

Almost surely, 2^28258902 is an apocalyptic number.

28258902 is an abundant number, since it is smaller than the sum of its proper divisors (43510698).

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

28258902 is a wasteful number, since it uses less digits than its factorization.

28258902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74777 (or 74771 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28258902 is about 5315.9102701231. The cubic root of 28258902 is about 304.5919545622.

The spelling of 28258902 in words is "twenty-eight million, two hundred fifty-eight thousand, nine hundred two".