446442666 has 16 divisors (see below), whose sum is σ = 917017824. Its totient is φ = 144792144.

The previous prime is 446442653. The next prime is 446442683. The reversal of 446442666 is 666244644.

It is a super-2 number, since 2×446442666² = 398622108050375112, which contains 22 as substring.

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, 1005280 + ... + 1005723.

It is an arithmetic number, because the mean of its divisors is an integer number (57313614).

Almost surely, 2^446442666 is an apocalyptic number.

446442666 is an abundant number, since it is smaller than the sum of its proper divisors (470575158).

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

446442666 is a wasteful number, since it uses less digits than its factorization.

446442666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011045.

The product of its digits is 663552, while the sum is 42.

The square root of 446442666 is about 21129.1899040167. The cubic root of 446442666 is about 764.2848149555.

The spelling of 446442666 in words is "four hundred forty-six million, four hundred forty-two thousand, six hundred sixty-six".