82404544 has 42 divisors (see below), whose sum is σ = 169465244. Its totient is φ = 39755520.

The previous prime is 82404529. The next prime is 82404551. The reversal of 82404544 is 44540428.

It is a super-4 number, since 4×82404544⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53059 + ... + 54589.

Almost surely, 2^82404544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82404544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84732622).

82404544 is an abundant number, since it is smaller than the sum of its proper divisors (87060700).

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

82404544 is a wasteful number, since it uses less digits than its factorization.

82404544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 82404544 is about 9077.6948615824. The cubic root of 82404544 is about 435.1614215731.

The spelling of 82404544 in words is "eighty-two million, four hundred four thousand, five hundred forty-four".