441666406 has 16 divisors (see below), whose sum is σ = 678988800. Its totient is φ = 215404488.

The previous prime is 441666383. The next prime is 441666451. The reversal of 441666406 is 604666144.

It is a happy 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, 3726 + ... + 29953.

It is an arithmetic number, because the mean of its divisors is an integer number (42436800).

Almost surely, 2^441666406 is an apocalyptic number.

441666406 is a deficient number, since it is larger than the sum of its proper divisors (237322394).

441666406 is a wasteful number, since it uses less digits than its factorization.

441666406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33843.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 441666406 is about 21015.8608198665. The cubic root of 441666406 is about 761.5494738562.

The spelling of 441666406 in words is "four hundred forty-one million, six hundred sixty-six thousand, four hundred six".