2311398 has 12 divisors (see below), whose sum is σ = 5008068. Its totient is φ = 770460.

The previous prime is 2311381. The next prime is 2311409. The reversal of 2311398 is 8931132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64188 + ... + 64223.

It is an arithmetic number, because the mean of its divisors is an integer number (417339).

2^2311398 is an apocalyptic number.

2311398 is an abundant number, since it is smaller than the sum of its proper divisors (2696670).

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

2311398 is a wasteful number, since it uses less digits than its factorization.

2311398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128419 (or 128416 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2311398 is about 1520.3282540294. The cubic root of 2311398 is about 132.2183026821.

The spelling of 2311398 in words is "two million, three hundred eleven thousand, three hundred ninety-eight".