446666445 has 48 divisors (see below), whose sum is σ = 803712000. Its totient is φ = 229236480.

The previous prime is 446666431. The next prime is 446666447. The reversal of 446666445 is 544666644.

It is not a de Polignac number, because 446666445 - 2⁷ = 446666317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 446666445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (446666447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276801 + ... + 278409.

It is an arithmetic number, because the mean of its divisors is an integer number (16744000).

Almost surely, 2^446666445 is an apocalyptic number.

446666445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

446666445 is a deficient number, since it is larger than the sum of its proper divisors (357045555).

446666445 is a wasteful number, since it uses less digits than its factorization.

446666445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850 (or 1847 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 45.

The square root of 446666445 is about 21134.4847346700. The cubic root of 446666445 is about 764.4124926592.

The spelling of 446666445 in words is "four hundred forty-six million, six hundred sixty-six thousand, four hundred forty-five".