90222254 has 4 divisors (see below), whose sum is σ = 135333384. Its totient is φ = 45111126.

The previous prime is 90222239. The next prime is 90222283. The reversal of 90222254 is 45222209.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22555562 + ... + 22555565.

It is an arithmetic number, because the mean of its divisors is an integer number (33833346).

Almost surely, 2^90222254 is an apocalyptic number.

90222254 is a deficient number, since it is larger than the sum of its proper divisors (45111130).

90222254 is a wasteful number, since it uses less digits than its factorization.

90222254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45111129.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 90222254 is about 9498.5395719553. The cubic root of 90222254 is about 448.5090640538.

The spelling of 90222254 in words is "ninety million, two hundred twenty-two thousand, two hundred fifty-four".