90109322 has 16 divisors (see below), whose sum is σ = 142122600. Its totient is φ = 42786240.

The previous prime is 90109321. The next prime is 90109337. The reversal of 90109322 is 22390109.

It can be written as a sum of positive squares in 4 ways, for example, as 67059721 + 23049601 = 8189^2 + 4801^2 .

It is a super-2 number, since 2×90109322² = 16239379822599368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90109291 and 90109300.

It is not an unprimeable number, because it can be changed into a prime (90109321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9197 + ... + 16272.

Almost surely, 2^90109322 is an apocalyptic number.

90109322 is a deficient number, since it is larger than the sum of its proper divisors (52013278).

90109322 is a wasteful number, since it uses less digits than its factorization.

90109322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25561.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 90109322 is about 9492.5930071820. The cubic root of 90109322 is about 448.3218516551.

The spelling of 90109322 in words is "ninety million, one hundred nine thousand, three hundred twenty-two".