82182140 has 12 divisors (see below), whose sum is σ = 172582536. Its totient is φ = 32872848.

The previous prime is 82182137. The next prime is 82182161. The reversal of 82182140 is 4128128.

It is a congruent number.

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, 2054534 + ... + 2054573.

It is an arithmetic number, because the mean of its divisors is an integer number (14381878).

Almost surely, 2^82182140 is an apocalyptic number.

It is an amenable number.

82182140 is an abundant number, since it is smaller than the sum of its proper divisors (90400396).

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

82182140 is a wasteful number, since it uses less digits than its factorization.

82182140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109116 (or 4109114 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 82182140 is about 9065.4365587102. The cubic root of 82182140 is about 434.7695789400.

The spelling of 82182140 in words is "eighty-two million, one hundred eighty-two thousand, one hundred forty".