90886540 has 24 divisors (see below), whose sum is σ = 192240720. Its totient is φ = 36091968.

The previous prime is 90886529. The next prime is 90886553. The reversal of 90886540 is 4568809.

It is a junction number, because it is equal to n+sod(n) for n = 90886493 and 90886502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13567 + ... + 19126.

It is an arithmetic number, because the mean of its divisors is an integer number (8010030).

Almost surely, 2^90886540 is an apocalyptic number.

It is an amenable number.

90886540 is an abundant number, since it is smaller than the sum of its proper divisors (101354180).

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

90886540 is a wasteful number, since it uses less digits than its factorization.

90886540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32841 (or 32839 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 90886540 is about 9533.4432394597. The cubic root of 90886540 is about 449.6071303585.

The spelling of 90886540 in words is "ninety million, eight hundred eighty-six thousand, five hundred forty".