446622666 has 32 divisors (see below), whose sum is σ = 1027627008. Its totient is φ = 126759600.

The previous prime is 446622661. The next prime is 446622667. The reversal of 446622666 is 666226644.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (446622661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28870 + ... + 41553.

It is an arithmetic number, because the mean of its divisors is an integer number (32113344).

Almost surely, 2^446622666 is an apocalyptic number.

446622666 is an abundant number, since it is smaller than the sum of its proper divisors (581004342).

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

446622666 is a wasteful number, since it uses less digits than its factorization.

446622666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70586.

The product of its digits is 497664, while the sum is 42.

The square root of 446622666 is about 21133.4489849622. The cubic root of 446622666 is about 764.3875177901.

The spelling of 446622666 in words is "four hundred forty-six million, six hundred twenty-two thousand, six hundred sixty-six".