338021881 has 8 divisors (see below), whose sum is σ = 343686240. Its totient is φ = 332404128.

The previous prime is 338021867. The next prime is 338021891. The reversal of 338021881 is 188120833.

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

It is a cyclic number.

It is not a de Polignac number, because 338021881 - 2¹¹ = 338019833 is a prime.

It is a super-2 number, since 2×338021881² = 228517584069556322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338021891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3130 + ... + 26188.

It is an arithmetic number, because the mean of its divisors is an integer number (42960780).

Almost surely, 2^338021881 is an apocalyptic number.

It is an amenable number.

338021881 is a deficient number, since it is larger than the sum of its proper divisors (5664359).

338021881 is a wasteful number, since it uses less digits than its factorization.

338021881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23303.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 338021881 is about 18385.3713859688. The cubic root of 338021881 is about 696.5970079336.

The spelling of 338021881 in words is "three hundred thirty-eight million, twenty-one thousand, eight hundred eighty-one".