338904890 has 8 divisors (see below), whose sum is σ = 610028820. Its totient is φ = 135561952.

The previous prime is 338904889. The next prime is 338904899. The reversal of 338904890 is 98409833.

It can be written as a sum of positive squares in 2 ways, for example, as 337787641 + 1117249 = 18379^2 + 1057^2 .

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

It is a super-2 number, since 2×338904890² = 229713048931824200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338904899) 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, 16945235 + ... + 16945254.

Almost surely, 2^338904890 is an apocalyptic number.

338904890 is a deficient number, since it is larger than the sum of its proper divisors (271123930).

338904890 is a wasteful number, since it uses less digits than its factorization.

338904890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33890496.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 338904890 is about 18409.3696252751. The cubic root of 338904890 is about 697.2030501569.

The spelling of 338904890 in words is "three hundred thirty-eight million, nine hundred four thousand, eight hundred ninety".