338406738 has 8 divisors (see below), whose sum is σ = 676813488. Its totient is φ = 112802244.

The previous prime is 338406727. The next prime is 338406767. The reversal of 338406738 is 837604833.

It is a sphenic number, since it is the product of 3 distinct primes.

338406738 is an admirable number.

It is a super-2 number, since 2×338406738² = 229038240647601288, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 338406738.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28200556 + ... + 28200567.

It is an arithmetic number, because the mean of its divisors is an integer number (84601686).

Almost surely, 2^338406738 is an apocalyptic number.

338406738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

338406738 is a wasteful number, since it uses less digits than its factorization.

338406738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56401128.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 338406738 is about 18395.8348003019. The cubic root of 338406738 is about 696.8612793400.

The spelling of 338406738 in words is "three hundred thirty-eight million, four hundred six thousand, seven hundred thirty-eight".