82369220 has 24 divisors (see below), whose sum is σ = 173746944. Its totient is φ = 32800736.

The previous prime is 82369211. The next prime is 82369241. The reversal of 82369220 is 2296328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4532 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (7239456).

Almost surely, 2^82369220 is an apocalyptic number.

It is an amenable number.

82369220 is an abundant number, since it is smaller than the sum of its proper divisors (91377724).

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

82369220 is a wasteful number, since it uses less digits than its factorization.

82369220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18379 (or 18377 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 82369220 is about 9075.7490049031. The cubic root of 82369220 is about 435.0992330971.

The spelling of 82369220 in words is "eighty-two million, three hundred sixty-nine thousand, two hundred twenty".