90222266 has 16 divisors (see below), whose sum is σ = 137462400. Its totient is φ = 44405088.

The previous prime is 90222239. The next prime is 90222283. The reversal of 90222266 is 66222209.

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, 69350 + ... + 70638.

It is an arithmetic number, because the mean of its divisors is an integer number (8591400).

Almost surely, 2^90222266 is an apocalyptic number.

90222266 is a deficient number, since it is larger than the sum of its proper divisors (47240134).

90222266 is a wasteful number, since it uses less digits than its factorization.

90222266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 90222266 is about 9498.5402036313. The cubic root of 90222266 is about 448.5090839384.

The spelling of 90222266 in words is "ninety million, two hundred twenty-two thousand, two hundred sixty-six".