338688940 has 12 divisors (see below), whose sum is σ = 711246816. Its totient is φ = 135475568.

The previous prime is 338688913. The next prime is 338688947. The reversal of 338688940 is 49886833.

It is a super-2 number, since 2×338688940² = 229420396156647200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338688947) 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, 8467204 + ... + 8467243.

It is an arithmetic number, because the mean of its divisors is an integer number (59270568).

Almost surely, 2^338688940 is an apocalyptic number.

It is an amenable number.

338688940 is an abundant number, since it is smaller than the sum of its proper divisors (372557876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

338688940 is a wasteful number, since it uses less digits than its factorization.

338688940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16934456 (or 16934454 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 338688940 is about 18403.5034708069. The cubic root of 338688940 is about 697.0549328989.

The spelling of 338688940 in words is "three hundred thirty-eight million, six hundred eighty-eight thousand, nine hundred forty".