90182220 has 24 divisors (see below), whose sum is σ = 252510384. Its totient is φ = 24048576.

The previous prime is 90182207. The next prime is 90182231. The reversal of 90182220 is 2228109.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751459 + ... + 751578.

It is an arithmetic number, because the mean of its divisors is an integer number (10521266).

Almost surely, 2^90182220 is an apocalyptic number.

It is an amenable number.

90182220 is an abundant number, since it is smaller than the sum of its proper divisors (162328164).

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

90182220 is a wasteful number, since it uses less digits than its factorization.

90182220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503049 (or 1503047 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 90182220 is about 9496.4319615317. The cubic root of 90182220 is about 448.4427157952.

The spelling of 90182220 in words is "ninety million, one hundred eighty-two thousand, two hundred twenty".