40204430143 has 4 divisors (see below), whose sum is σ = 42569396640. Its totient is φ = 37839463648.

The previous prime is 40204430099. The next prime is 40204430191. The reversal of 40204430143 is 34103440204.

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 40204430143 - 2¹⁷ = 40204299071 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 (40204430243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182483223 + ... + 1182483256.

It is an arithmetic number, because the mean of its divisors is an integer number (10642349160).

Almost surely, 2^40204430143 is an apocalyptic number.

40204430143 is a deficient number, since it is larger than the sum of its proper divisors (2364966497).

40204430143 is a wasteful number, since it uses less digits than its factorization.

40204430143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364966496.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40204430143 its reverse (34103440204), we get a palindrome (74307870347).

The spelling of 40204430143 in words is "forty billion, two hundred four million, four hundred thirty thousand, one hundred forty-three".