909090108 has 48 divisors (see below), whose sum is σ = 2368800000. Its totient is φ = 301500144.

The previous prime is 909090107. The next prime is 909090109. The reversal of 909090108 is 801090909.

It is an interprime number because it is at equal distance from previous prime (909090107) and next prime (909090109).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909090107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343 + ... + 42641.

It is an arithmetic number, because the mean of its divisors is an integer number (49350000).

Almost surely, 2^909090108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 909090108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1184400000).

909090108 is an abundant number, since it is smaller than the sum of its proper divisors (1459709892).

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

909090108 is a wasteful number, since it uses less digits than its factorization.

909090108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42511 (or 42503 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 909090108 is about 30151.1211731836. The cubic root of 909090108 is about 968.7290216033.

The spelling of 909090108 in words is "nine hundred nine million, ninety thousand, one hundred eight".