407444814856 has 16 divisors (see below), whose sum is σ = 763968780540. Its totient is φ = 203719806720.

The previous prime is 407444814853. The next prime is 407444814863. The reversal of 407444814856 is 658418444704.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 328913720100 + 78531094756 = 573510^2 + 280234^2 .

It is a super-2 number, since 2×407444814856² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 407444814797 and 407444814806.

It is not an unprimeable number, because it can be changed into a prime (407444814853) 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, 449236 + ... + 1008316.

Almost surely, 2^407444814856 is an apocalyptic number.

It is an amenable number.

407444814856 is a deficient number, since it is larger than the sum of its proper divisors (356523965684).

407444814856 is a wasteful number, since it uses less digits than its factorization.

407444814856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650184 (or 650180 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 55.

The spelling of 407444814856 in words is "four hundred seven billion, four hundred forty-four million, eight hundred fourteen thousand, eight hundred fifty-six".