82204281 has 16 divisors (see below), whose sum is σ = 125713920. Its totient is φ = 53034480.

The previous prime is 82204259. The next prime is 82204301. The reversal of 82204281 is 18240228.

It is not a de Polignac number, because 82204281 - 2⁶ = 82204217 is a prime.

It is a super-2 number, since 2×82204281² = 13515087629453922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (82204201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48270 + ... + 49943.

It is an arithmetic number, because the mean of its divisors is an integer number (7857120).

Almost surely, 2^82204281 is an apocalyptic number.

It is an amenable number.

82204281 is a deficient number, since it is larger than the sum of its proper divisors (43509639).

82204281 is a wasteful number, since it uses less digits than its factorization.

82204281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98253 (or 98247 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 82204281 is about 9066.6576531818. The cubic root of 82204281 is about 434.8086197376.

The spelling of 82204281 in words is "eighty-two million, two hundred four thousand, two hundred eighty-one".