2397940 has 24 divisors (see below), whose sum is σ = 5144832. Its totient is φ = 938400.

The previous prime is 2397931. The next prime is 2397947. The reversal of 2397940 is 497932.

2397940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2397896 and 2397905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336 + ... + 2215.

It is an arithmetic number, because the mean of its divisors is an integer number (214368).

2^2397940 is an apocalyptic number.

2397940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2397940 is an abundant number, since it is smaller than the sum of its proper divisors (2746892).

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

2397940 is a wasteful number, since it uses less digits than its factorization.

2397940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607 (or 2605 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 2397940 is about 1548.5283336123. The cubic root of 2397940 is about 133.8482726103.

The spelling of 2397940 in words is "two million, three hundred ninety-seven thousand, nine hundred forty".