90325449 has 30 divisors (see below), whose sum is σ = 142452090. Its totient is φ = 57029184.

The previous prime is 90325423. The next prime is 90325453. The reversal of 90325449 is 94452309.

It can be written as a sum of positive squares in only one way, i.e., 88454025 + 1871424 = 9405^2 + 1368^2 .

It is not a de Polignac number, because 90325449 - 2¹⁵ = 90292681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90325049) 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 in 29 ways as a sum of consecutive naturals, for example, 27697 + ... + 30785.

It is an arithmetic number, because the mean of its divisors is an integer number (4748403).

Almost surely, 2^90325449 is an apocalyptic number.

It is an amenable number.

90325449 is a deficient number, since it is larger than the sum of its proper divisors (52126641).

90325449 is a wasteful number, since it uses less digits than its factorization.

90325449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 90325449 is about 9503.9701704077. The cubic root of 90325449 is about 448.6799984435.

The spelling of 90325449 in words is "ninety million, three hundred twenty-five thousand, four hundred forty-nine".