90074449 has 4 divisors (see below), whose sum is σ = 95372964. Its totient is φ = 84775936.

The previous prime is 90074431. The next prime is 90074461. The reversal of 90074449 is 94447009.

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 33177600 + 56896849 = 5760^2 + 7543^2 .

It is a cyclic number.

It is not a de Polignac number, because 90074449 - 2¹⁵ = 90041681 is a prime.

It is a super-2 number, since 2×90074449² = 16226812725307202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90074429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2649232 + ... + 2649265.

It is an arithmetic number, because the mean of its divisors is an integer number (23843241).

Almost surely, 2^90074449 is an apocalyptic number.

It is an amenable number.

90074449 is a deficient number, since it is larger than the sum of its proper divisors (5298515).

90074449 is a wasteful number, since it uses less digits than its factorization.

90074449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5298514.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 90074449 is about 9490.7559762118. The cubic root of 90074449 is about 448.2640095255.

It can be divided in two parts, 9007 and 4449, that added together give a square (13456 = 116²).

The spelling of 90074449 in words is "ninety million, seventy-four thousand, four hundred forty-nine".