9240990 has 64 divisors (see below), whose sum is σ = 24820992. Its totient is φ = 2182400.

The previous prime is 9240989. The next prime is 9240991. The reversal of 9240990 is 990429.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9240989) and next prime (9240991).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9240991) 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, 13189 + ... + 13871.

It is an arithmetic number, because the mean of its divisors is an integer number (387828).

Almost surely, 2^9240990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9240990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12410496).

9240990 is an abundant number, since it is smaller than the sum of its proper divisors (15580002).

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

9240990 is a wasteful number, since it uses less digits than its factorization.

9240990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 9240990 is about 3039.8996693970. The cubic root of 9240990 is about 209.8486437716.

The spelling of 9240990 in words is "nine million, two hundred forty thousand, nine hundred ninety".