90360449 has 4 divisors (see below), whose sum is σ = 90859860. Its totient is φ = 89861040.

The previous prime is 90360427. The next prime is 90360463. The reversal of 90360449 is 94406309.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16056049 + 74304400 = 4007^2 + 8620^2 .

It is a cyclic number.

It is not a de Polignac number, because 90360449 - 2¹² = 90356353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90360499) 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 3 ways as a sum of consecutive naturals, for example, 249434 + ... + 249795.

It is an arithmetic number, because the mean of its divisors is an integer number (22714965).

Almost surely, 2^90360449 is an apocalyptic number.

It is an amenable number.

90360449 is a deficient number, since it is larger than the sum of its proper divisors (499411).

90360449 is a wasteful number, since it uses less digits than its factorization.

90360449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499410.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 90360449 is about 9505.8113278142. The cubic root of 90360449 is about 448.7379436192.

It can be divided in two parts, 90360 and 449, that added together give a palindrome (90809).

The spelling of 90360449 in words is "ninety million, three hundred sixty thousand, four hundred forty-nine".