9090630 has 112 divisors (see below), whose sum is σ = 25969680. Its totient is φ = 2286144.

The previous prime is 9090629. The next prime is 9090649. The reversal of 9090630 is 360909.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 9090594 and 9090603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 211389 + ... + 211431.

Almost surely, 2^9090630 is an apocalyptic number.

9090630 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9090630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12984840).

9090630 is an abundant number, since it is smaller than the sum of its proper divisors (16879050).

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

9090630 is a wasteful number, since it uses less digits than its factorization.

9090630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 9090630 is about 3015.0671634310. The cubic root of 9090630 is about 208.7042664583.

The spelling of 9090630 in words is "nine million, ninety thousand, six hundred thirty".