82238120 has 16 divisors (see below), whose sum is σ = 185035860. Its totient is φ = 32895232.

The previous prime is 82238119. The next prime is 82238147. The reversal of 82238120 is 2183228.

It can be written as a sum of positive squares in 2 ways, for example, as 76352644 + 5885476 = 8738^2 + 2426^2 .

It is a super-2 number, since 2×82238120² = 13526216762268800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82238120.

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, 1027937 + ... + 1028016.

Almost surely, 2^82238120 is an apocalyptic number.

It is an amenable number.

82238120 is an abundant number, since it is smaller than the sum of its proper divisors (102797740).

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

82238120 is a wasteful number, since it uses less digits than its factorization.

82238120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055964 (or 2055960 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 82238120 is about 9068.5235843548. The cubic root of 82238120 is about 434.8682738507.

The spelling of 82238120 in words is "eighty-two million, two hundred thirty-eight thousand, one hundred twenty".