338434947 has 6 divisors (see below), whose sum is σ = 488850492. Its totient is φ = 225623292.

The previous prime is 338434939. The next prime is 338434969. The reversal of 338434947 is 749434833.

It is not a de Polignac number, because 338434947 - 2³ = 338434939 is a prime.

It is a super-2 number, since 2×338434947² = 229076426701785618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338434847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18801933 + ... + 18801950.

It is an arithmetic number, because the mean of its divisors is an integer number (81475082).

Almost surely, 2^338434947 is an apocalyptic number.

338434947 is a deficient number, since it is larger than the sum of its proper divisors (150415545).

338434947 is a wasteful number, since it uses less digits than its factorization.

338434947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37603889 (or 37603886 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 338434947 is about 18396.6015068001. The cubic root of 338434947 is about 696.8806418521.

The spelling of 338434947 in words is "three hundred thirty-eight million, four hundred thirty-four thousand, nine hundred forty-seven".