338747872 has 24 divisors (see below), whose sum is σ = 667405872. Its totient is φ = 169248000.

The previous prime is 338747861. The next prime is 338747873. The reversal of 338747872 is 278747833.

It is a happy number.

It is a super-2 number, since 2×338747872² = 229500241569056768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338747873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51997 + ... + 58147.

It is an arithmetic number, because the mean of its divisors is an integer number (27808578).

Almost surely, 2^338747872 is an apocalyptic number.

338747872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

338747872 is a deficient number, since it is larger than the sum of its proper divisors (328658000).

338747872 is a wasteful number, since it uses less digits than its factorization.

338747872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882 (or 7874 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 49.

The square root of 338747872 is about 18405.1045093474. The cubic root of 338747872 is about 697.0953598257.

The spelling of 338747872 in words is "three hundred thirty-eight million, seven hundred forty-seven thousand, eight hundred seventy-two".