440000400412025 has 24 divisors (see below), whose sum is σ = 578803462548984. Its totient is φ = 330658537164800.

The previous prime is 440000400412007. The next prime is 440000400412099. The reversal of 440000400412025 is 520214004000044.

It can be written as a sum of positive squares in 12 ways, for example, as 71531183827321 + 368469216584704 = 8457611^2 + 19195552^2 .

It is not a de Polignac number, because 440000400412025 - 2⁸ = 440000400411769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440000400411985 and 440000400412003.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 993343892 + ... + 993786741.

It is an arithmetic number, because the mean of its divisors is an integer number (24116810939541).

Almost surely, 2^{440000400412025} is an apocalyptic number.

It is an amenable number.

440000400412025 is a deficient number, since it is larger than the sum of its proper divisors (138803062136959).

440000400412025 is a wasteful number, since it uses less digits than its factorization.

440000400412025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987131181 (or 1987131176 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 440000400412025 its reverse (520214004000044), we get a palindrome (960214404412069).

The spelling of 440000400412025 in words is "four hundred forty trillion, four hundred million, four hundred twelve thousand, twenty-five".