2397838 has 16 divisors (see below), whose sum is σ = 3834000. Its totient is φ = 1121472.

The previous prime is 2397827. The next prime is 2397839. The reversal of 2397838 is 8387932.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2397838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3028 + ... + 3736.

It is an arithmetic number, because the mean of its divisors is an integer number (239625).

2^2397838 is an apocalyptic number.

2397838 is a deficient number, since it is larger than the sum of its proper divisors (1436162).

2397838 is a wasteful number, since it uses less digits than its factorization.

2397838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its digits is 72576, while the sum is 40.

The square root of 2397838 is about 1548.4953987662. The cubic root of 2397838 is about 133.8463747705.

The spelling of 2397838 in words is "two million, three hundred ninety-seven thousand, eight hundred thirty-eight".