338974221 has 4 divisors (see below), whose sum is σ = 451965632. Its totient is φ = 225982812.

The previous prime is 338974201. The next prime is 338974267. The reversal of 338974221 is 122479833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 338974221 - 2¹⁴ = 338957837 is a prime.

It is a super-2 number, since 2×338974221² = 229807045005113682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338974221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338974201) 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, 56495701 + ... + 56495706.

It is an arithmetic number, because the mean of its divisors is an integer number (112991408).

Almost surely, 2^338974221 is an apocalyptic number.

It is an amenable number.

338974221 is a deficient number, since it is larger than the sum of its proper divisors (112991411).

338974221 is a wasteful number, since it uses less digits than its factorization.

338974221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112991410.

The product of its digits is 72576, while the sum is 39.

The square root of 338974221 is about 18411.2525646682. The cubic root of 338974221 is about 697.2505900324.

The spelling of 338974221 in words is "three hundred thirty-eight million, nine hundred seventy-four thousand, two hundred twenty-one".