90120322 has 8 divisors (see below), whose sum is σ = 136444176. Its totient is φ = 44638932.

The previous prime is 90120319. The next prime is 90120323. The reversal of 90120322 is 22302109.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 90120322.

It is not an unprimeable number, because it can be changed into a prime (90120323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210348 + ... + 210775.

It is an arithmetic number, because the mean of its divisors is an integer number (17055522).

Almost surely, 2^90120322 is an apocalyptic number.

90120322 is a deficient number, since it is larger than the sum of its proper divisors (46323854).

90120322 is a wasteful number, since it uses less digits than its factorization.

90120322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421232.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 90120322 is about 9493.1723886170. The cubic root of 90120322 is about 448.3400937178.

The spelling of 90120322 in words is "ninety million, one hundred twenty thousand, three hundred twenty-two".