338974549 has 2 divisors, whose sum is σ = 338974550. Its totient is φ = 338974548.

The previous prime is 338974487. The next prime is 338974561. The reversal of 338974549 is 945479833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324648324 + 14326225 = 18018^2 + 3785^2 .

It is a cyclic number.

It is not a de Polignac number, because 338974549 - 2¹³ = 338966357 is a prime.

It is a super-2 number, since 2×338974549² = 229807489739506802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338974496 and 338974505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338974589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169487274 + 169487275.

It is an arithmetic number, because the mean of its divisors is an integer number (169487275).

Almost surely, 2^338974549 is an apocalyptic number.

It is an amenable number.

338974549 is a deficient number, since it is larger than the sum of its proper divisors (1).

338974549 is an equidigital number, since it uses as much as digits as its factorization.

338974549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 52.

The square root of 338974549 is about 18411.2614722620. The cubic root of 338974549 is about 697.2508149247.

The spelling of 338974549 in words is "three hundred thirty-eight million, nine hundred seventy-four thousand, five hundred forty-nine".