82442090 has 8 divisors (see below), whose sum is σ = 148395780. Its totient is φ = 32976832.

The previous prime is 82442081. The next prime is 82442117. The reversal of 82442090 is 9024428.

It can be written as a sum of positive squares in 2 ways, for example, as 78978769 + 3463321 = 8887^2 + 1861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4122095 + ... + 4122114.

Almost surely, 2^82442090 is an apocalyptic number.

82442090 is a deficient number, since it is larger than the sum of its proper divisors (65953690).

82442090 is a wasteful number, since it uses less digits than its factorization.

82442090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8244216.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 82442090 is about 9079.7626620964. The cubic root of 82442090 is about 435.2275024351.

The spelling of 82442090 in words is "eighty-two million, four hundred forty-two thousand, ninety".