90249322 has 4 divisors (see below), whose sum is σ = 135373986. Its totient is φ = 45124660.

The previous prime is 90249281. The next prime is 90249329. The reversal of 90249322 is 22394209.

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

It can be written as a sum of positive squares in only one way, i.e., 88906041 + 1343281 = 9429^2 + 1159^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (90249329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562329 + ... + 22562332.

Almost surely, 2^90249322 is an apocalyptic number.

90249322 is a deficient number, since it is larger than the sum of its proper divisors (45124664).

90249322 is a wasteful number, since it uses less digits than its factorization.

90249322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45124663.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 90249322 is about 9499.9643157225. The cubic root of 90249322 is about 448.5539126690.

It can be divided in two parts, 902 and 49322, that multiplied together give a palindrome (44488444).

The spelling of 90249322 in words is "ninety million, two hundred forty-nine thousand, three hundred twenty-two".