20303706 has 8 divisors (see below), whose sum is σ = 40607424. Its totient is φ = 6767900.

The previous prime is 20303681. The next prime is 20303707. The reversal of 20303706 is 60730302.

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

20303706 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20303707) 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, 1691970 + ... + 1691981.

It is an arithmetic number, because the mean of its divisors is an integer number (5075928).

Almost surely, 2^20303706 is an apocalyptic number.

20303706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303706 is a wasteful number, since it uses less digits than its factorization.

20303706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383956.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 20303706 is about 4505.9633820083. The cubic root of 20303706 is about 272.8088398651.

The spelling of 20303706 in words is "twenty million, three hundred three thousand, seven hundred six".