338930885 has 4 divisors (see below), whose sum is σ = 406717068. Its totient is φ = 271144704.

The previous prime is 338930881. The next prime is 338930927. The reversal of 338930885 is 588039833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588039833 = 1999 ⋅294167.

It can be written as a sum of positive squares in 2 ways, for example, as 132319009 + 206611876 = 11503^2 + 14374^2 .

It is a cyclic number.

It is not a de Polignac number, because 338930885 - 2² = 338930881 is a prime.

It is a super-2 number, since 2×338930885² = 229748289613766450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338930881) 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, 33893084 + ... + 33893093.

It is an arithmetic number, because the mean of its divisors is an integer number (101679267).

Almost surely, 2^338930885 is an apocalyptic number.

It is an amenable number.

338930885 is a deficient number, since it is larger than the sum of its proper divisors (67786183).

338930885 is an equidigital number, since it uses as much as digits as its factorization.

338930885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67786182.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 338930885 is about 18410.0756380847. The cubic root of 338930885 is about 697.2208755414.

The spelling of 338930885 in words is "three hundred thirty-eight million, nine hundred thirty thousand, eight hundred eighty-five".