90448 has 10 divisors (see below), whose sum is σ = 175274. Its totient is φ = 45216.

The previous prime is 90439. The next prime is 90469. The reversal of 90448 is 84409.

It can be written as a sum of positive squares in only one way, i.e., 85264 + 5184 = 292^2 + 72^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811 + ... + 2842.

2⁹⁰⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

90448 is a deficient number, since it is larger than the sum of its proper divisors (84826).

90448 is a wasteful number, since it uses less digits than its factorization.

90448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661 (or 5655 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 90448 is about 300.7457397870. The cubic root of 90448 is about 44.8882825494. Note that the first 3 decimals are identical.

The spelling of 90448 in words is "ninety thousand, four hundred forty-eight".