2397540 has 48 divisors (see below), whose sum is σ = 6935040. Its totient is φ = 618240.

The previous prime is 2397529. The next prime is 2397541. The reversal of 2397540 is 457932.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2397498 and 2397507.

It is not an unprimeable number, because it can be changed into a prime (2397541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (144480).

2^2397540 is an apocalyptic number.

2397540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2397540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3467520).

2397540 is an abundant number, since it is smaller than the sum of its proper divisors (4537500).

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

2397540 is a wasteful number, since it uses less digits than its factorization.

2397540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2397540 is about 1548.3991733400. The cubic root of 2397540 is about 133.8408297932.

The spelling of 2397540 in words is "two million, three hundred ninety-seven thousand, five hundred forty".