9992440 has 16 divisors (see below), whose sum is σ = 22483080. Its totient is φ = 3996960.

The previous prime is 9992401. The next prime is 9992449. The reversal of 9992440 is 442999.

9992440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9992440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124866 + ... + 124945.

Almost surely, 2^9992440 is an apocalyptic number.

It is an amenable number.

9992440 is an abundant number, since it is smaller than the sum of its proper divisors (12490640).

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

9992440 is a wasteful number, since it uses less digits than its factorization.

9992440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249822 (or 249818 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9992440 is about 3161.0820932080. The cubic root of 9992440 is about 215.3891635617.

The spelling of 9992440 in words is "nine million, nine hundred ninety-two thousand, four hundred forty".