406005722 has 16 divisors (see below), whose sum is σ = 621069120. Its totient is φ = 199022208.

The previous prime is 406005673. The next prime is 406005749. The reversal of 406005722 is 227500604.

It is a junction number, because it is equal to n+sod(n) for n = 406005691 and 406005700.

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, 10979 + ... + 30537.

It is an arithmetic number, because the mean of its divisors is an integer number (38816820).

Almost surely, 2^406005722 is an apocalyptic number.

406005722 is a deficient number, since it is larger than the sum of its proper divisors (215063398).

406005722 is a wasteful number, since it uses less digits than its factorization.

406005722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19765.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 406005722 is about 20149.5836681555. The cubic root of 406005722 is about 740.4755416739.

The spelling of 406005722 in words is "four hundred six million, five thousand, seven hundred twenty-two".