20140403 has 4 divisors (see below), whose sum is σ = 20173560. Its totient is φ = 20107248.

The previous prime is 20140363. The next prime is 20140411. The reversal of 20140403 is 30404102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20140403 - 2¹⁸ = 19878259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20140423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15650 + ... + 16887.

It is an arithmetic number, because the mean of its divisors is an integer number (5043390).

Almost surely, 2^20140403 is an apocalyptic number.

20140403 is a deficient number, since it is larger than the sum of its proper divisors (33157).

20140403 is an equidigital number, since it uses as much as digits as its factorization.

20140403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33156.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20140403 is about 4487.8060341329. The cubic root of 20140403 is about 272.0754683538.

Adding to 20140403 its reverse (30404102), we get a palindrome (50544505).

It can be divided in two parts, 201 and 40403, that added together give a palindrome (40604).

The spelling of 20140403 in words is "twenty million, one hundred forty thousand, four hundred three".