90093408 has 48 divisors (see below), whose sum is σ = 237436416. Its totient is φ = 29911680.

The previous prime is 90093403. The next prime is 90093439. The reversal of 90093408 is 80439009.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90093403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24285 + ... + 27747.

It is an arithmetic number, because the mean of its divisors is an integer number (4946592).

Almost surely, 2^90093408 is an apocalyptic number.

It is an amenable number.

90093408 is an abundant number, since it is smaller than the sum of its proper divisors (147343008).

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

90093408 is a wasteful number, since it uses less digits than its factorization.

90093408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 90093408 is about 9491.7547376657. The cubic root of 90093408 is about 448.2954577377.

The spelling of 90093408 in words is "ninety million, ninety-three thousand, four hundred eight".