82201844 has 12 divisors (see below), whose sum is σ = 143948868. Its totient is φ = 41073600.

The previous prime is 82201841. The next prime is 82201859. The reversal of 82201844 is 44810228.

It can be written as a sum of positive squares in 2 ways, for example, as 41113744 + 41088100 = 6412^2 + 6410^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82201841) 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, 914 + ... + 12854.

It is an arithmetic number, because the mean of its divisors is an integer number (11995739).

Almost surely, 2^82201844 is an apocalyptic number.

It is an amenable number.

82201844 is a deficient number, since it is larger than the sum of its proper divisors (61747024).

82201844 is a wasteful number, since it uses less digits than its factorization.

82201844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13666 (or 13664 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 82201844 is about 9066.5232586698. The cubic root of 82201844 is about 434.8043229659.

The spelling of 82201844 in words is "eighty-two million, two hundred one thousand, eight hundred forty-four".