406680004 has 24 divisors (see below), whose sum is σ = 718867800. Its totient is φ = 201298944.

The previous prime is 406679957. The next prime is 406680013. The reversal of 406680004 is 400086604.

It can be written as a sum of positive squares in 4 ways, for example, as 19377604 + 387302400 = 4402^2 + 19680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209422 + ... + 211354.

It is an arithmetic number, because the mean of its divisors is an integer number (29952825).

Almost surely, 2^406680004 is an apocalyptic number.

It is an amenable number.

406680004 is a deficient number, since it is larger than the sum of its proper divisors (312187796).

406680004 is a wasteful number, since it uses less digits than its factorization.

406680004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 406680004 is about 20166.3086359403. The cubic root of 406680004 is about 740.8852347360.

The spelling of 406680004 in words is "four hundred six million, six hundred eighty thousand, four".