40103423 has 4 divisors (see below), whose sum is σ = 40409688. Its totient is φ = 39797160.

The previous prime is 40103419. The next prime is 40103431. The reversal of 40103423 is 32430104.

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 40103423 - 2² = 40103419 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 (40163423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152936 + ... + 153197.

It is an arithmetic number, because the mean of its divisors is an integer number (10102422).

Almost surely, 2^40103423 is an apocalyptic number.

40103423 is a deficient number, since it is larger than the sum of its proper divisors (306265).

40103423 is a wasteful number, since it uses less digits than its factorization.

40103423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306264.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40103423 is about 6332.7263481063. The cubic root of 40103423 is about 342.2896870695.

Adding to 40103423 its reverse (32430104), we get a palindrome (72533527).

The spelling of 40103423 in words is "forty million, one hundred three thousand, four hundred twenty-three".