90384448 has 56 divisors (see below), whose sum is σ = 223625664. Its totient is φ = 35212800.

The previous prime is 90384419. The next prime is 90384473. The reversal of 90384448 is 84448309.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 90384448.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4243 + ... + 14098.

Almost surely, 2^90384448 is an apocalyptic number.

It is an amenable number.

90384448 is an abundant number, since it is smaller than the sum of its proper divisors (133241216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90384448 is a wasteful number, since it uses less digits than its factorization.

90384448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18371 (or 18361 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 90384448 is about 9507.0735770793. The cubic root of 90384448 is about 448.7776671515. Note that the first 3 decimals are identical.

The spelling of 90384448 in words is "ninety million, three hundred eighty-four thousand, four hundred forty-eight".