90488544 has 48 divisors (see below), whose sum is σ = 238322448. Its totient is φ = 30062592.

The previous prime is 90488539. The next prime is 90488561. The reversal of 90488544 is 44588409.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 90488496 and 90488505.

It is a congruent number.

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, 30954 + ... + 33750.

It is an arithmetic number, because the mean of its divisors is an integer number (4965051).

Almost surely, 2^90488544 is an apocalyptic number.

It is an amenable number.

90488544 is an abundant number, since it is smaller than the sum of its proper divisors (147833904).

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

90488544 is a wasteful number, since it uses less digits than its factorization.

90488544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 90488544 is about 9512.5466621720. The cubic root of 90488544 is about 448.9498871821.

The spelling of 90488544 in words is "ninety million, four hundred eighty-eight thousand, five hundred forty-four".