4400013404431 has 4 divisors (see below), whose sum is σ = 4400061875352. Its totient is φ = 4399964933512.

The previous prime is 4400013404417. The next prime is 4400013404441. The reversal of 4400013404431 is 1344043100044.

It is a happy number.

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 4400013404431 - 2¹⁹ = 4400012880143 is a prime.

It is a super-2 number, since 2×4400013404431² (a number of 26 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 4400013404431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400013404411) 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, 24099040 + ... + 24280933.

It is an arithmetic number, because the mean of its divisors is an integer number (1100015468838).

Almost surely, 2^{4400013404431} is an apocalyptic number.

4400013404431 is a deficient number, since it is larger than the sum of its proper divisors (48470921).

4400013404431 is an equidigital number, since it uses as much as digits as its factorization.

4400013404431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48470920.

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

Adding to 4400013404431 its reverse (1344043100044), we get a palindrome (5744056504475).

The spelling of 4400013404431 in words is "four trillion, four hundred billion, thirteen million, four hundred four thousand, four hundred thirty-one".