82220344 has 8 divisors (see below), whose sum is σ = 154163160. Its totient is φ = 41110168.

The previous prime is 82220329. The next prime is 82220351. The reversal of 82220344 is 44302228.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138764 + ... + 5138779.

It is an arithmetic number, because the mean of its divisors is an integer number (19270395).

Almost surely, 2^82220344 is an apocalyptic number.

It is an amenable number.

82220344 is a deficient number, since it is larger than the sum of its proper divisors (71942816).

82220344 is a wasteful number, since it uses less digits than its factorization.

82220344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277549 (or 10277545 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 82220344 is about 9067.5434379991. The cubic root of 82220344 is about 434.8369389277.

The spelling of 82220344 in words is "eighty-two million, two hundred twenty thousand, three hundred forty-four".