2238361 has 2 divisors, whose sum is σ = 2238362. Its totient is φ = 2238360.

The previous prime is 2238359. The next prime is 2238377. The reversal of 2238361 is 1638322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 47961 = 1480^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238361 - 2¹ = 2238359 is a prime.

Together with 2238359, it forms a pair of twin primes.

It is equal to p₁₆₅₂₉₂ and since 2238361 and 165292 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (2238311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119180 + 1119181.

It is an arithmetic number, because the mean of its divisors is an integer number (1119181).

2^2238361 is an apocalyptic number.

It is an amenable number.

2238361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238361 is an equidigital number, since it uses as much as digits as its factorization.

2238361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 2238361 is about 1496.1153030432. The cubic root of 2238361 is about 130.8107322538.

It can be divided in two parts, 22 and 38361, that added together give a palindrome (38383).

The spelling of 2238361 in words is "two million, two hundred thirty-eight thousand, three hundred sixty-one".