40223144431 has 4 divisors (see below), whose sum is σ = 40789667664. Its totient is φ = 39656621200.

The previous prime is 40223144417. The next prime is 40223144443. The reversal of 40223144431 is 13444132204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40223144431 is a prime.

It is a super-3 number, since 3×40223144431³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40223144431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223144131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283261510 + ... + 283261651.

It is an arithmetic number, because the mean of its divisors is an integer number (10197416916).

Almost surely, 2^40223144431 is an apocalyptic number.

40223144431 is a deficient number, since it is larger than the sum of its proper divisors (566523233).

40223144431 is an equidigital number, since it uses as much as digits as its factorization.

40223144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566523232.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40223144431 its reverse (13444132204), we get a palindrome (53667276635).

The spelling of 40223144431 in words is "forty billion, two hundred twenty-three million, one hundred forty-four thousand, four hundred thirty-one".