90407924 has 12 divisors (see below), whose sum is σ = 160575744. Its totient is φ = 44529144.

The previous prime is 90407903. The next prime is 90407927. The reversal of 90407924 is 42970409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90407927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168404 + ... + 168939.

It is an arithmetic number, because the mean of its divisors is an integer number (13381312).

Almost surely, 2^90407924 is an apocalyptic number.

It is an amenable number.

90407924 is a deficient number, since it is larger than the sum of its proper divisors (70167820).

90407924 is a wasteful number, since it uses less digits than its factorization.

90407924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337414 (or 337412 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 90407924 is about 9508.3081565545. The cubic root of 90407924 is about 448.8165182029.

The spelling of 90407924 in words is "ninety million, four hundred seven thousand, nine hundred twenty-four".