446740666 has 4 divisors (see below), whose sum is σ = 670111002. Its totient is φ = 223370332.

The previous prime is 446740649. The next prime is 446740667. The reversal of 446740666 is 666047644.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 446688225 + 52441 = 21135^2 + 229^2 .

It is not an unprimeable number, because it can be changed into a prime (446740667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111685165 + ... + 111685168.

Almost surely, 2^446740666 is an apocalyptic number.

446740666 is a deficient number, since it is larger than the sum of its proper divisors (223370336).

446740666 is a wasteful number, since it uses less digits than its factorization.

446740666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223370335.

The product of its (nonzero) digits is 580608, while the sum is 43.

The square root of 446740666 is about 21136.2405834150. The cubic root of 446740666 is about 764.4548302305.

The spelling of 446740666 in words is "four hundred forty-six million, seven hundred forty thousand, six hundred sixty-six".