20093403 has 16 divisors (see below), whose sum is σ = 29941632. Its totient is φ = 11880000.

The previous prime is 20093401. The next prime is 20093417. The reversal of 20093403 is 30439002.

It is not a de Polignac number, because 20093403 - 2¹ = 20093401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20093403.

It is not an unprimeable number, because it can be changed into a prime (20093401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6073 + ... + 8778.

It is an arithmetic number, because the mean of its divisors is an integer number (1871352).

Almost surely, 2^20093403 is an apocalyptic number.

20093403 is a deficient number, since it is larger than the sum of its proper divisors (9848229).

20093403 is a wasteful number, since it uses less digits than its factorization.

20093403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14906.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 20093403 is about 4482.5665639229. The cubic root of 20093403 is about 271.8636634723.

The spelling of 20093403 in words is "twenty million, ninety-three thousand, four hundred three".