9912490 has 64 divisors (see below), whose sum is σ = 22291200. Its totient is φ = 3096576.

The previous prime is 9912481. The next prime is 9912491. The reversal of 9912490 is 942199.

It is not an unprimeable number, because it can be changed into a prime (9912491) 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, 38442 + ... + 38698.

It is an arithmetic number, because the mean of its divisors is an integer number (348300).

Almost surely, 2^9912490 is an apocalyptic number.

9912490 is an abundant number, since it is smaller than the sum of its proper divisors (12378710).

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

9912490 is a wasteful number, since it uses less digits than its factorization.

9912490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 9912490 is about 3148.4107101838. The cubic root of 9912490 is about 214.8131782549.

It can be divided in two parts, 991 and 2490, that added together give a square (3481 = 59²).

The spelling of 9912490 in words is "nine million, nine hundred twelve thousand, four hundred ninety".