82290208 has 144 divisors (see below), whose sum is σ = 222009984. Its totient is φ = 29514240.

The previous prime is 82290203. The next prime is 82290209. The reversal of 82290208 is 80209228.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82290208.

It is not an unprimeable number, because it can be changed into a prime (82290203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224041 + ... + 224407.

It is an arithmetic number, because the mean of its divisors is an integer number (1541736).

Almost surely, 2^82290208 is an apocalyptic number.

82290208 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82290208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111004992).

82290208 is an abundant number, since it is smaller than the sum of its proper divisors (139719776).

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

82290208 is a wasteful number, since it uses less digits than its factorization.

82290208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 82290208 is about 9071.3950415578. The cubic root of 82290208 is about 434.9600667971.

The spelling of 82290208 in words is "eighty-two million, two hundred ninety thousand, two hundred eight".