90020266 has 16 divisors (see below), whose sum is σ = 155738880. Its totient is φ = 38225520.

The previous prime is 90020257. The next prime is 90020339. The reversal of 90020266 is 66202009.

It is a self number, because there is not a number n which added to its sum of digits gives 90020266.

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, 27970 + ... + 31021.

It is an arithmetic number, because the mean of its divisors is an integer number (9733680).

Almost surely, 2^90020266 is an apocalyptic number.

90020266 is a deficient number, since it is larger than the sum of its proper divisors (65718614).

90020266 is a wasteful number, since it uses less digits than its factorization.

90020266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59109.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 90020266 is about 9487.9010323675. The cubic root of 90020266 is about 448.1741092233.

The spelling of 90020266 in words is "ninety million, twenty thousand, two hundred sixty-six".