90499500 has 432 divisors, whose sum is σ = 374092992. Its totient is φ = 17971200.

The previous prime is 90499441. The next prime is 90499523. The reversal of 90499500 is 599409.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5323492 + ... + 5323508.

It is an arithmetic number, because the mean of its divisors is an integer number (865956).

Almost surely, 2^90499500 is an apocalyptic number.

90499500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90499500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187046496).

90499500 is an abundant number, since it is smaller than the sum of its proper divisors (283593492).

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

90499500 is a wasteful number, since it uses less digits than its factorization.

90499500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 90499500 is about 9513.1225157674. The cubic root of 90499500 is about 448.9680054847.

The spelling of 90499500 in words is "ninety million, four hundred ninety-nine thousand, five hundred".