90422250 has 32 divisors (see below), whose sum is σ = 225695808. Its totient is φ = 24112400.

The previous prime is 90422243. The next prime is 90422251. The reversal of 90422250 is 5222409.

It is a self number, because there is not a number n which added to its sum of digits gives 90422250.

It is not an unprimeable number, because it can be changed into a prime (90422251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59532 + ... + 61031.

It is an arithmetic number, because the mean of its divisors is an integer number (7052994).

Almost surely, 2^90422250 is an apocalyptic number.

90422250 is an abundant number, since it is smaller than the sum of its proper divisors (135273558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90422250 is a wasteful number, since it uses less digits than its factorization.

90422250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120583 (or 120573 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 90422250 is about 9509.0614678842. The cubic root of 90422250 is about 448.8402233737.

Adding to 90422250 its reverse (5222409), we get a palindrome (95644659).

The spelling of 90422250 in words is "ninety million, four hundred twenty-two thousand, two hundred fifty".