338442447 has 32 divisors (see below), whose sum is σ = 543449088. Its totient is φ = 183164256.

The previous prime is 338442439. The next prime is 338442449. The reversal of 338442447 is 744244833.

It is not a de Polignac number, because 338442447 - 2³ = 338442439 is a prime.

It is a super-2 number, since 2×338442447² = 229086579862695618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338442449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46348 + ... + 53150.

It is an arithmetic number, because the mean of its divisors is an integer number (16982784).

Almost surely, 2^338442447 is an apocalyptic number.

338442447 is a deficient number, since it is larger than the sum of its proper divisors (205006641).

338442447 is a wasteful number, since it uses less digits than its factorization.

338442447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939.

The product of its digits is 258048, while the sum is 39.

The square root of 338442447 is about 18396.8053476684. The cubic root of 338442447 is about 696.8857896323.

The spelling of 338442447 in words is "three hundred thirty-eight million, four hundred forty-two thousand, four hundred forty-seven".