82274556 has 96 divisors (see below), whose sum is σ = 240468480. Its totient is φ = 21314304.

The previous prime is 82274539. The next prime is 82274557. The reversal of 82274556 is 65547228.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82274557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63790 + ... + 65066.

It is an arithmetic number, because the mean of its divisors is an integer number (2504880).

Almost surely, 2^82274556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82274556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120234240).

82274556 is an abundant number, since it is smaller than the sum of its proper divisors (158193924).

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

82274556 is a wasteful number, since it uses less digits than its factorization.

82274556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1361 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 82274556 is about 9070.5322886807. The cubic root of 82274556 is about 434.9324878712.

The spelling of 82274556 in words is "eighty-two million, two hundred seventy-four thousand, five hundred fifty-six".