20730383 has 8 divisors (see below), whose sum is σ = 21832800. Its totient is φ = 19644768.

The previous prime is 20730373. The next prime is 20730407. The reversal of 20730383 is 38303702.

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

It is a cyclic number.

It is not a de Polignac number, because 20730383 - 2¹⁴ = 20713999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20730313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628 + ... + 6641.

It is an arithmetic number, because the mean of its divisors is an integer number (2729100).

Almost surely, 2^20730383 is an apocalyptic number.

20730383 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20730383 is a deficient number, since it is larger than the sum of its proper divisors (1102417).

20730383 is a wasteful number, since it uses less digits than its factorization.

20730383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8401.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20730383 is about 4553.0630349250. The cubic root of 20730383 is about 274.7066094143.

The spelling of 20730383 in words is "twenty million, seven hundred thirty thousand, three hundred eighty-three".