28322892 has 48 divisors (see below), whose sum is σ = 79082080. Its totient is φ = 8714304.

The previous prime is 28322881. The next prime is 28322897. The reversal of 28322892 is 29822382.

It is a super-2 number, since 2×28322892² = 1604372422487328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28322897) 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, 8683 + ... + 11490.

Almost surely, 2^28322892 is an apocalyptic number.

It is an amenable number.

28322892 is an abundant number, since it is smaller than the sum of its proper divisors (50759188).

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

28322892 is a wasteful number, since it uses less digits than its factorization.

28322892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20199 (or 20191 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28322892 is about 5321.9255913626. The cubic root of 28322892 is about 304.8216892000.

The spelling of 28322892 in words is "twenty-eight million, three hundred twenty-two thousand, eight hundred ninety-two".