90868452 has 12 divisors (see below), whose sum is σ = 212026416. Its totient is φ = 30289480.

The previous prime is 90868439. The next prime is 90868487. The reversal of 90868452 is 25486809.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 3786174 + ... + 3786197.

It is an arithmetic number, because the mean of its divisors is an integer number (17668868).

Almost surely, 2^90868452 is an apocalyptic number.

It is an amenable number.

90868452 is an abundant number, since it is smaller than the sum of its proper divisors (121157964).

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

90868452 is a wasteful number, since it uses less digits than its factorization.

90868452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572378 (or 7572376 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 90868452 is about 9532.4945318631. The cubic root of 90868452 is about 449.5773018370.

The spelling of 90868452 in words is "ninety million, eight hundred sixty-eight thousand, four hundred fifty-two".