82401232 has 20 divisors (see below), whose sum is σ = 161841700. Its totient is φ = 40635648.

The previous prime is 82401217. The next prime is 82401239. The reversal of 82401232 is 23210428.

It can be written as a sum of positive squares in 2 ways, for example, as 68293696 + 14107536 = 8264^2 + 3756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82401239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34107 + ... + 36442.

It is an arithmetic number, because the mean of its divisors is an integer number (8092085).

Almost surely, 2^82401232 is an apocalyptic number.

It is an amenable number.

82401232 is a deficient number, since it is larger than the sum of its proper divisors (79440468).

82401232 is a wasteful number, since it uses less digits than its factorization.

82401232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70630 (or 70624 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 82401232 is about 9077.5124345825. The cubic root of 82401232 is about 435.1555914984.

The spelling of 82401232 in words is "eighty-two million, four hundred one thousand, two hundred thirty-two".