338206849 has 4 divisors (see below), whose sum is σ = 338277636. Its totient is φ = 338136064.

The previous prime is 338206811. The next prime is 338206861. The reversal of 338206849 is 948602833.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 232013824 + 106193025 = 15232^2 + 10305^2 .

It is a cyclic number.

It is not a de Polignac number, because 338206849 - 2¹³ = 338198657 is a prime.

It is a super-2 number, since 2×338206849² = 228767745421017602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338206879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27664 + ... + 37969.

It is an arithmetic number, because the mean of its divisors is an integer number (84569409).

Almost surely, 2^338206849 is an apocalyptic number.

It is an amenable number.

338206849 is a deficient number, since it is larger than the sum of its proper divisors (70787).

338206849 is an equidigital number, since it uses as much as digits as its factorization.

338206849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70786.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 338206849 is about 18390.4010016095. The cubic root of 338206849 is about 696.7240457256.

The spelling of 338206849 in words is "three hundred thirty-eight million, two hundred six thousand, eight hundred forty-nine".