440044004431 has 16 divisors (see below), whose sum is σ = 446614025760. Its totient is φ = 433519747200.

The previous prime is 440044004359. The next prime is 440044004443. The reversal of 440044004431 is 134400440044.

It is a cyclic number.

It is not a de Polignac number, because 440044004431 - 2⁷ = 440044004303 is a prime.

It is a super-2 number, since 2×440044004431² (a number of 24 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 440044004431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440044004731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45628696 + ... + 45638338.

It is an arithmetic number, because the mean of its divisors is an integer number (27913376610).

Almost surely, 2^440044004431 is an apocalyptic number.

440044004431 is a deficient number, since it is larger than the sum of its proper divisors (6570021329).

440044004431 is a wasteful number, since it uses less digits than its factorization.

440044004431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11946.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 440044004431 its reverse (134400440044), we get a palindrome (574444444475).

It can be divided in two parts, 44004 and 4004431, that added together give a triangular number (4048435 = T₂₈₄₅).

The spelling of 440044004431 in words is "four hundred forty billion, forty-four million, four thousand, four hundred thirty-one".