20338466 has 8 divisors (see below), whose sum is σ = 30627180. Its totient is φ = 10129408.

The previous prime is 20338433. The next prime is 20338469. The reversal of 20338466 is 66483302.

It can be written as a sum of positive squares in 2 ways, for example, as 17397241 + 2941225 = 4171^2 + 1715^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20338469) 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, 19271 + ... + 20298.

Almost surely, 2^20338466 is an apocalyptic number.

20338466 is a deficient number, since it is larger than the sum of its proper divisors (10288714).

20338466 is a wasteful number, since it uses less digits than its factorization.

20338466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39828.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 20338466 is about 4509.8188433683. The cubic root of 20338466 is about 272.9644342653.

The spelling of 20338466 in words is "twenty million, three hundred thirty-eight thousand, four hundred sixty-six".