82438180 has 24 divisors (see below), whose sum is σ = 188858880. Its totient is φ = 29977440.

The previous prime is 82438127. The next prime is 82438193. The reversal of 82438180 is 8183428.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187140 + ... + 187579.

It is an arithmetic number, because the mean of its divisors is an integer number (7869120).

Almost surely, 2^82438180 is an apocalyptic number.

It is an amenable number.

82438180 is an abundant number, since it is smaller than the sum of its proper divisors (106420700).

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

82438180 is a wasteful number, since it uses less digits than its factorization.

82438180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374739 (or 374737 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 82438180 is about 9079.5473455454. The cubic root of 82438180 is about 435.2206217814.

The spelling of 82438180 in words is "eighty-two million, four hundred thirty-eight thousand, one hundred eighty".