9120290 has 16 divisors (see below), whose sum is σ = 16529400. Its totient is φ = 3623040.

The previous prime is 9120283. The next prime is 9120301. The reversal of 9120290 is 920219.

It can be written as a sum of positive squares in 4 ways, for example, as 3508129 + 5612161 = 1873^2 + 2369^2 .

It is a Curzon number.

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, 1571 + ... + 4550.

Almost surely, 2^9120290 is an apocalyptic number.

9120290 is a deficient number, since it is larger than the sum of its proper divisors (7409110).

9120290 is a wasteful number, since it uses less digits than its factorization.

9120290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 9120290 is about 3019.9817880246. The cubic root of 9120290 is about 208.9309998639.

The spelling of 9120290 in words is "nine million, one hundred twenty thousand, two hundred ninety".