90036930 has 64 divisors (see below), whose sum is σ = 233186688. Its totient is φ = 22164480.

The previous prime is 90036929. The next prime is 90036937. The reversal of 90036930 is 3963009.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (90036937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25365 + ... + 28695.

It is an arithmetic number, because the mean of its divisors is an integer number (3643542).

Almost surely, 2^90036930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90036930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116593344).

90036930 is an abundant number, since it is smaller than the sum of its proper divisors (143149758).

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

90036930 is a wasteful number, since it uses less digits than its factorization.

90036930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 90036930 is about 9488.7791627796. The cubic root of 90036930 is about 448.2017619320.

Adding to 90036930 its reverse (3963009), we get a palindrome (93999939).

The spelling of 90036930 in words is "ninety million, thirty-six thousand, nine hundred thirty".