9459990 has 96 divisors (see below), whose sum is σ = 27125280. Its totient is φ = 2363904.

The previous prime is 9459959. The next prime is 9460027. The reversal of 9459990 is 999549.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41196 + ... + 41424.

It is an arithmetic number, because the mean of its divisors is an integer number (282555).

Almost surely, 2^9459990 is an apocalyptic number.

9459990 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 9459990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13562640).

9459990 is an abundant number, since it is smaller than the sum of its proper divisors (17665290).

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

9459990 is a wasteful number, since it uses less digits than its factorization.

9459990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 9459990 is about 3075.7096742053. The cubic root of 9459990 is about 211.4934357401.

Subtracting from 9459990 its reverse (999549), we obtain a triangular number (8460441 = T₄₁₁₃).

The spelling of 9459990 in words is "nine million, four hundred fifty-nine thousand, nine hundred ninety".