406411646 has 16 divisors (see below), whose sum is σ = 620311488. Its totient is φ = 199648800.

The previous prime is 406411631. The next prime is 406411669. The reversal of 406411646 is 646114604.

It is a Curzon number.

It is a congruent number.

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, 172436 + ... + 174776.

It is an arithmetic number, because the mean of its divisors is an integer number (38769468).

Almost surely, 2^406411646 is an apocalyptic number.

406411646 is a deficient number, since it is larger than the sum of its proper divisors (213899842).

406411646 is a wasteful number, since it uses less digits than its factorization.

406411646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 406411646 is about 20159.6539156802. The cubic root of 406411646 is about 740.7222349765.

The spelling of 406411646 in words is "four hundred six million, four hundred eleven thousand, six hundred forty-six".