90222243 has 16 divisors (see below), whose sum is σ = 124697760. Its totient is φ = 57977856.

The previous prime is 90222239. The next prime is 90222283. The reversal of 90222243 is 34222209.

It is not a de Polignac number, because 90222243 - 2² = 90222239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90222283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8371 + ... + 15827.

It is an arithmetic number, because the mean of its divisors is an integer number (7793610).

Almost surely, 2^90222243 is an apocalyptic number.

90222243 is a deficient number, since it is larger than the sum of its proper divisors (34475517).

90222243 is a wasteful number, since it uses less digits than its factorization.

90222243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 90222243 is about 9498.5389929189. The cubic root of 90222243 is about 448.5090458262.

The spelling of 90222243 in words is "ninety million, two hundred twenty-two thousand, two hundred forty-three".