2316381 has 4 divisors (see below), whose sum is σ = 3088512. Its totient is φ = 1544252.

The previous prime is 2316373. The next prime is 2316383. The reversal of 2316381 is 1836132.

2316381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2316381 - 2³ = 2316373 is a prime.

It is a super-2 number, since 2×2316381² = 10731241874322, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2316383) 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 3 ways as a sum of consecutive naturals, for example, 386061 + ... + 386066.

It is an arithmetic number, because the mean of its divisors is an integer number (772128).

2^2316381 is an apocalyptic number.

It is an amenable number.

2316381 is a deficient number, since it is larger than the sum of its proper divisors (772131).

2316381 is an equidigital number, since it uses as much as digits as its factorization.

2316381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772130.

The product of its digits is 864, while the sum is 24.

The square root of 2316381 is about 1521.9661625674. The cubic root of 2316381 is about 132.3132482395.

Subtracting from 2316381 its reverse (1836132), we obtain a square (480249 = 693²).

The spelling of 2316381 in words is "two million, three hundred sixteen thousand, three hundred eighty-one".