90844450 has 24 divisors (see below), whose sum is σ = 170653140. Its totient is φ = 35976000.

The previous prime is 90844441. The next prime is 90844459. The reversal of 90844450 is 5444809.

It is an interprime number because it is at equal distance from previous prime (90844441) and next prime (90844459).

It can be written as a sum of positive squares in 6 ways, for example, as 70711281 + 20133169 = 8409^2 + 4487^2 .

It is not an unprimeable number, because it can be changed into a prime (90844459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3945 + ... + 14044.

Almost surely, 2^90844450 is an apocalyptic number.

90844450 is a deficient number, since it is larger than the sum of its proper divisors (79808690).

90844450 is a wasteful number, since it uses less digits than its factorization.

90844450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18102 (or 18097 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 90844450 is about 9531.2354917922. The cubic root of 90844450 is about 449.5377145567.

The spelling of 90844450 in words is "ninety million, eight hundred forty-four thousand, four hundred fifty".