90083740 has 12 divisors (see below), whose sum is σ = 189175896. Its totient is φ = 36033488.

The previous prime is 90083717. The next prime is 90083759. The reversal of 90083740 is 4738009.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2252074 + ... + 2252113.

It is an arithmetic number, because the mean of its divisors is an integer number (15764658).

Almost surely, 2^90083740 is an apocalyptic number.

It is an amenable number.

90083740 is an abundant number, since it is smaller than the sum of its proper divisors (99092156).

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

90083740 is a wasteful number, since it uses less digits than its factorization.

90083740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4504196 (or 4504194 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 90083740 is about 9491.2454398777. The cubic root of 90083740 is about 448.2794215088.

The spelling of 90083740 in words is "ninety million, eighty-three thousand, seven hundred forty".