12297390 has 64 divisors (see below), whose sum is σ = 34836480. Its totient is φ = 2718720.

The previous prime is 12297371. The next prime is 12297391. The reversal of 12297390 is 9379221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297391) 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, 5566 + ... + 7454.

It is an arithmetic number, because the mean of its divisors is an integer number (544320).

Almost surely, 2^12297390 is an apocalyptic number.

12297390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12297390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17418240).

12297390 is an abundant number, since it is smaller than the sum of its proper divisors (22539090).

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

12297390 is a wasteful number, since it uses less digits than its factorization.

12297390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12297390 is about 3506.7634650772. The cubic root of 12297390 is about 230.8186954650.

The spelling of 12297390 in words is "twelve million, two hundred ninety-seven thousand, three hundred ninety".