34438381 has 2 divisors, whose sum is σ = 34438382. Its totient is φ = 34438380.

The previous prime is 34438363. The next prime is 34438387. The reversal of 34438381 is 18383443.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21949225 + 12489156 = 4685^2 + 3534^2 .

It is a cyclic number.

It is not a de Polignac number, because 34438381 - 2⁷ = 34438253 is a prime.

It is a super-2 number, since 2×34438381² = 2372004171802322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34438387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17219190 + 17219191.

It is an arithmetic number, because the mean of its divisors is an integer number (17219191).

Almost surely, 2^34438381 is an apocalyptic number.

It is an amenable number.

34438381 is a deficient number, since it is larger than the sum of its proper divisors (1).

34438381 is an equidigital number, since it uses as much as digits as its factorization.

34438381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 34438381 is about 5868.4223603964. The cubic root of 34438381 is about 325.3475760761.

The spelling of 34438381 in words is "thirty-four million, four hundred thirty-eight thousand, three hundred eighty-one".