338944493 has 2 divisors, whose sum is σ = 338944494. Its totient is φ = 338944492.

The previous prime is 338944429. The next prime is 338944513. The reversal of 338944493 is 394449833.

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., 270997444 + 67947049 = 16462^2 + 8243^2 .

It is a cyclic number.

It is not a de Polignac number, because 338944493 - 2⁶ = 338944429 is a prime.

It is a super-2 number, since 2×338944493² = 229766738670054098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338944393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169472246 + 169472247.

It is an arithmetic number, because the mean of its divisors is an integer number (169472247).

Almost surely, 2^338944493 is an apocalyptic number.

It is an amenable number.

338944493 is a deficient number, since it is larger than the sum of its proper divisors (1).

338944493 is an equidigital number, since it uses as much as digits as its factorization.

338944493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 47.

The square root of 338944493 is about 18410.4452146058. The cubic root of 338944493 is about 697.2302065045.

The spelling of 338944493 in words is "three hundred thirty-eight million, nine hundred forty-four thousand, four hundred ninety-three".