82183940 has 12 divisors (see below), whose sum is σ = 172586316. Its totient is φ = 32873568.

The previous prime is 82183931. The next prime is 82183951. The reversal of 82183940 is 4938128.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48636676 + 33547264 = 6974^2 + 5792^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82183940.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054579 + ... + 2054618.

It is an arithmetic number, because the mean of its divisors is an integer number (14382193).

Almost surely, 2^82183940 is an apocalyptic number.

It is an amenable number.

82183940 is an abundant number, since it is smaller than the sum of its proper divisors (90402376).

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

82183940 is a wasteful number, since it uses less digits than its factorization.

82183940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109206 (or 4109204 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 82183940 is about 9065.5358363419. The cubic root of 82183940 is about 434.7727531070.

The spelling of 82183940 in words is "eighty-two million, one hundred eighty-three thousand, nine hundred forty".