90422 has 8 divisors (see below), whose sum is σ = 140400. Its totient is φ = 43624.

The previous prime is 90407. The next prime is 90437. The reversal of 90422 is 22409.

It is an interprime number because it is at equal distance from previous prime (90407) and next prime (90437).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×90422² = 16352276168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90422.

It is a congruent number.

It is an unprimeable number.

90422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 837.

It is an arithmetic number, because the mean of its divisors is an integer number (17550).

2⁹⁰⁴²² is an apocalyptic number.

90422 is a deficient number, since it is larger than the sum of its proper divisors (49978).

90422 is a wasteful number, since it uses less digits than its factorization.

90422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 90422 is about 300.7025107976. The cubic root of 90422 is about 44.8839809721.

It can be divided in two parts, 90 and 422, that added together give a 9-th power (512 = 2⁹).

The spelling of 90422 in words is "ninety thousand, four hundred twenty-two".