28082232 has 48 divisors (see below), whose sum is σ = 80533440. Its totient is φ = 8809728.

The previous prime is 28082231. The next prime is 28082233. The reversal of 28082232 is 23228082.

It is an interprime number because it is at equal distance from previous prime (28082231) and next prime (28082233).

It is a super-2 number, since 2×28082232² = 1577223508203648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28082196 and 28082205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10248 + ... + 12695.

It is an arithmetic number, because the mean of its divisors is an integer number (1677780).

Almost surely, 2^28082232 is an apocalyptic number.

It is an amenable number.

28082232 is an abundant number, since it is smaller than the sum of its proper divisors (52451208).

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

28082232 is a wasteful number, since it uses less digits than its factorization.

28082232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22972 (or 22965 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28082232 is about 5299.2671191402. The cubic root of 28082232 is about 303.9558742510.

The spelling of 28082232 in words is "twenty-eight million, eighty-two thousand, two hundred thirty-two".