82144736 has 24 divisors (see below), whose sum is σ = 166095720. Its totient is φ = 39961728.

The previous prime is 82144723. The next prime is 82144757. The reversal of 82144736 is 63744128.

It is a junction number, because it is equal to n+sod(n) for n = 82144696 and 82144705.

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, 33506 + ... + 35873.

It is an arithmetic number, because the mean of its divisors is an integer number (6920655).

Almost surely, 2^82144736 is an apocalyptic number.

It is an amenable number.

82144736 is an abundant number, since it is smaller than the sum of its proper divisors (83950984).

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

82144736 is a wasteful number, since it uses less digits than its factorization.

82144736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69426 (or 69418 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 82144736 is about 9063.3733234376. The cubic root of 82144736 is about 434.7036092572.

The spelling of 82144736 in words is "eighty-two million, one hundred forty-four thousand, seven hundred thirty-six".