82860440 has 32 divisors (see below), whose sum is σ = 200778480. Its totient is φ = 30594432.

The previous prime is 82860413. The next prime is 82860451. The reversal of 82860440 is 4406828.

It is a junction number, because it is equal to n+sod(n) for n = 82860397 and 82860406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79154 + ... + 80193.

Almost surely, 2^82860440 is an apocalyptic number.

It is an amenable number.

82860440 is an abundant number, since it is smaller than the sum of its proper divisors (117918040).

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

82860440 is a wasteful number, since it uses less digits than its factorization.

82860440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159371 (or 159367 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 82860440 is about 9102.7710066770. The cubic root of 82860440 is about 435.9624438094.

The spelling of 82860440 in words is "eighty-two million, eight hundred sixty thousand, four hundred forty".