338283981 has 24 divisors (see below), whose sum is σ = 559070720. Its totient is φ = 193085856.

The previous prime is 338283947. The next prime is 338283983. The reversal of 338283981 is 189382833.

It is not a de Polignac number, because 338283981 - 2⁷ = 338283853 is a prime.

It is a super-2 number, since 2×338283981² = 228872103602416722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338283983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64836 + ... + 69858.

Almost surely, 2^338283981 is an apocalyptic number.

It is an amenable number.

338283981 is a deficient number, since it is larger than the sum of its proper divisors (220786739).

338283981 is a wasteful number, since it uses less digits than its factorization.

338283981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105 (or 6102 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 338283981 is about 18392.4979543291. The cubic root of 338283981 is about 696.7770070366. Note that the first 3 decimals are identical.

The spelling of 338283981 in words is "three hundred thirty-eight million, two hundred eighty-three thousand, nine hundred eighty-one".