7238381 has 2 divisors, whose sum is σ = 7238382. Its totient is φ = 7238380.

The previous prime is 7238377. The next prime is 7238383. The reversal of 7238381 is 1838327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7070281 + 168100 = 2659^2 + 410^2 .

It is an emirp because it is prime and its reverse (1838327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7238381 - 2² = 7238377 is a prime.

It is a super-2 number, since 2×7238381² = 104788319002322, which contains 22 as substring.

Together with 7238383, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7238383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3619190 + 3619191.

It is an arithmetic number, because the mean of its divisors is an integer number (3619191).

Almost surely, 2^7238381 is an apocalyptic number.

It is an amenable number.

7238381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7238381 is an equidigital number, since it uses as much as digits as its factorization.

7238381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 7238381 is about 2690.4239442883. The cubic root of 7238381 is about 193.4403842993.

The spelling of 7238381 in words is "seven million, two hundred thirty-eight thousand, three hundred eighty-one".