82518444 has 36 divisors (see below), whose sum is σ = 219568440. Its totient is φ = 26058240.

The previous prime is 82518437. The next prime is 82518461. The reversal of 82518444 is 44481528.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×82518444² = 13618587200362272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 82518399 and 82518408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59637 + ... + 61004.

Almost surely, 2^82518444 is an apocalyptic number.

It is an amenable number.

82518444 is an abundant number, since it is smaller than the sum of its proper divisors (137049996).

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

82518444 is a wasteful number, since it uses less digits than its factorization.

82518444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120670 (or 120665 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 82518444 is about 9083.9663143365. The cubic root of 82518444 is about 435.3618234148.

The spelling of 82518444 in words is "eighty-two million, five hundred eighteen thousand, four hundred forty-four".