2238931 has 2 divisors, whose sum is σ = 2238932. Its totient is φ = 2238930.

The previous prime is 2238823. The next prime is 2238937. The reversal of 2238931 is 1398322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2238931 - 2⁹ = 2238419 is a prime.

It is a super-2 number, since 2×2238931² = 10025624045522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2238931.

It is not a weakly prime, because it can be changed into another prime (2238937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119465 + 1119466.

It is an arithmetic number, because the mean of its divisors is an integer number (1119466).

2^2238931 is an apocalyptic number.

2238931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238931 is an equidigital number, since it uses as much as digits as its factorization.

2238931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 2238931 is about 1496.3057842567. The cubic root of 2238931 is about 130.8218349892.

The spelling of 2238931 in words is "two million, two hundred thirty-eight thousand, nine hundred thirty-one".