82115480 has 32 divisors (see below), whose sum is σ = 185261040. Its totient is φ = 32757120.

The previous prime is 82115459. The next prime is 82115483. The reversal of 82115480 is 8451128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82115483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13295 + ... + 18465.

Almost surely, 2^82115480 is an apocalyptic number.

It is an amenable number.

82115480 is an abundant number, since it is smaller than the sum of its proper divisors (103145560).

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

82115480 is a wasteful number, since it uses less digits than its factorization.

82115480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579 (or 5575 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 82115480 is about 9061.7592111024. The cubic root of 82115480 is about 434.6519962973.

The spelling of 82115480 in words is "eighty-two million, one hundred fifteen thousand, four hundred eighty".