82444290 has 32 divisors (see below), whose sum is σ = 199794816. Its totient is φ = 21770880.

The previous prime is 82444289. The next prime is 82444291. The reversal of 82444290 is 9244428.

It is an interprime number because it is at equal distance from previous prime (82444289) and next prime (82444291).

It is not an unprimeable number, because it can be changed into a prime (82444291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10251 + ... + 16430.

It is an arithmetic number, because the mean of its divisors is an integer number (6243588).

Almost surely, 2^82444290 is an apocalyptic number.

82444290 is an abundant number, since it is smaller than the sum of its proper divisors (117350526).

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

82444290 is a wasteful number, since it uses less digits than its factorization.

82444290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26794.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 82444290 is about 9079.8838098293. The cubic root of 82444290 is about 435.2313738071.

The spelling of 82444290 in words is "eighty-two million, four hundred forty-four thousand, two hundred ninety".