406860244040 has 16 divisors (see below), whose sum is σ = 915435549180. Its totient is φ = 162744097600.

The previous prime is 406860243997. The next prime is 406860244051. The reversal of 406860244040 is 40442068604.

It can be written as a sum of positive squares in 2 ways, for example, as 406056975076 + 803268964 = 637226^2 + 28342^2 .

It is a junction number, because it is equal to n+sod(n) for n = 406860243985 and 406860244003.

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, 5085753011 + ... + 5085753090.

Almost surely, 2^406860244040 is an apocalyptic number.

406860244040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

406860244040 is an abundant number, since it is smaller than the sum of its proper divisors (508575305140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406860244040 is a wasteful number, since it uses less digits than its factorization.

406860244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171506112 (or 10171506108 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 406860244040 in words is "four hundred six billion, eight hundred sixty million, two hundred forty-four thousand, forty".