400412540044 has 12 divisors (see below), whose sum is σ = 764423940168. Its totient is φ = 182005700000.

The previous prime is 400412539949. The next prime is 400412540053. The reversal of 400412540044 is 440045214004.

It is a junction number, because it is equal to n+sod(n) for n = 400412539994 and 400412540021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550142457 + ... + 4550142544.

It is an arithmetic number, because the mean of its divisors is an integer number (63701995014).

Almost surely, 2^400412540044 is an apocalyptic number.

400412540044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400412540044 is a deficient number, since it is larger than the sum of its proper divisors (364011400124).

400412540044 is a wasteful number, since it uses less digits than its factorization.

400412540044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100285016 (or 9100285014 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 400412540044 its reverse (440045214004), we get a palindrome (840457754048).

The spelling of 400412540044 in words is "four hundred billion, four hundred twelve million, five hundred forty thousand, forty-four".