406673403740 has 12 divisors (see below), whose sum is σ = 854014147896. Its totient is φ = 162669361488.

The previous prime is 406673403737. The next prime is 406673403769. The reversal of 406673403740 is 47304376604.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 406673403691 and 406673403700.

It is a congruent number.

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, 10166835074 + ... + 10166835113.

It is an arithmetic number, because the mean of its divisors is an integer number (71167845658).

Almost surely, 2^406673403740 is an apocalyptic number.

It is an amenable number.

406673403740 is an abundant number, since it is smaller than the sum of its proper divisors (447340744156).

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

406673403740 is a wasteful number, since it uses less digits than its factorization.

406673403740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20333670196 (or 20333670194 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 44.

The spelling of 406673403740 in words is "four hundred six billion, six hundred seventy-three million, four hundred three thousand, seven hundred forty".