28230499 has 16 divisors (see below), whose sum is σ = 32338944. Its totient is φ = 24393600.

The previous prime is 28230493. The next prime is 28230511. The reversal of 28230499 is 99403282.

It is not a de Polignac number, because 28230499 - 2⁵ = 28230467 is a prime.

It is a super-2 number, since 2×28230499² = 1593922147578002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28230493) 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, 60742 + ... + 61204.

It is an arithmetic number, because the mean of its divisors is an integer number (2021184).

Almost surely, 2^28230499 is an apocalyptic number.

28230499 is a deficient number, since it is larger than the sum of its proper divisors (4108445).

28230499 is a wasteful number, since it uses less digits than its factorization.

28230499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 28230499 is about 5313.2380899034. The cubic root of 28230499 is about 304.4898719762.

The spelling of 28230499 in words is "twenty-eight million, two hundred thirty thousand, four hundred ninety-nine".