43404221431 has 8 divisors (see below), whose sum is σ = 44331436800. Its totient is φ = 42477161208.

The previous prime is 43404221429. The next prime is 43404221453. The reversal of 43404221431 is 13412240434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43404221431 - 2¹ = 43404221429 is a prime.

It is a super-2 number, since 2×43404221431² (a number of 22 digits) contains 22 as substring.

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 43404221431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43404221411) 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 7 ways as a sum of consecutive naturals, for example, 659440 + ... + 722266.

It is an arithmetic number, because the mean of its divisors is an integer number (5541429600).

Almost surely, 2^43404221431 is an apocalyptic number.

43404221431 is a deficient number, since it is larger than the sum of its proper divisors (927215369).

43404221431 is a wasteful number, since it uses less digits than its factorization.

43404221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77573.

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

Adding to 43404221431 its reverse (13412240434), we get a palindrome (56816461865).

The spelling of 43404221431 in words is "forty-three billion, four hundred four million, two hundred twenty-one thousand, four hundred thirty-one".