90442548 has 48 divisors (see below), whose sum is σ = 267980160. Its totient is φ = 25840512.

The previous prime is 90442537. The next prime is 90442577. The reversal of 90442548 is 84524409.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 59061 + ... + 60572.

It is an arithmetic number, because the mean of its divisors is an integer number (5582920).

Almost surely, 2^90442548 is an apocalyptic number.

It is an amenable number.

90442548 is an abundant number, since it is smaller than the sum of its proper divisors (177537612).

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

90442548 is a wasteful number, since it uses less digits than its factorization.

90442548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119653 (or 119645 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 90442548 is about 9510.1287057537. The cubic root of 90442548 is about 448.8738061008.

The spelling of 90442548 in words is "ninety million, four hundred forty-two thousand, five hundred forty-eight".