9912440 has 16 divisors (see below), whose sum is σ = 22303080. Its totient is φ = 3964960.

The previous prime is 9912421. The next prime is 9912481. The reversal of 9912440 is 442199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123866 + ... + 123945.

Almost surely, 2^9912440 is an apocalyptic number.

It is an amenable number.

9912440 is an abundant number, since it is smaller than the sum of its proper divisors (12390640).

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

9912440 is a wasteful number, since it uses less digits than its factorization.

9912440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247822 (or 247818 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 9912440 is about 3148.4027696596. The cubic root of 9912440 is about 214.8128170716.

The spelling of 9912440 in words is "nine million, nine hundred twelve thousand, four hundred forty".