28458260 has 24 divisors (see below), whose sum is σ = 61154016. Its totient is φ = 11118240.

The previous prime is 28458239. The next prime is 28458263. The reversal of 28458260 is 6285482.

It is a self number, because there is not a number n which added to its sum of digits gives 28458260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28458263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15686 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (2548084).

Almost surely, 2^28458260 is an apocalyptic number.

28458260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28458260 is an abundant number, since it is smaller than the sum of its proper divisors (32695756).

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

28458260 is a wasteful number, since it uses less digits than its factorization.

28458260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33143 (or 33141 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28458260 is about 5334.6283844332. The cubic root of 28458260 is about 305.3065447959.

The spelling of 28458260 in words is "twenty-eight million, four hundred fifty-eight thousand, two hundred sixty".