446666980 has 24 divisors (see below), whose sum is σ = 938400120. Its totient is φ = 178590720.

The previous prime is 446666977. The next prime is 446666981. The reversal of 446666980 is 89666644.

It can be written as a sum of positive squares in 4 ways, for example, as 94128804 + 352538176 = 9702^2 + 18776^2 .

It is a super-2 number, since 2×446666980² = 399022782044640800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (446666981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81940 + ... + 87220.

It is an arithmetic number, because the mean of its divisors is an integer number (39100005).

Almost surely, 2^446666980 is an apocalyptic number.

It is an amenable number.

446666980 is an abundant number, since it is smaller than the sum of its proper divisors (491733140).

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

446666980 is a wasteful number, since it uses less digits than its factorization.

446666980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9519 (or 9517 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The square root of 446666980 is about 21134.4973917053. The cubic root of 446666980 is about 764.4127978537.

The spelling of 446666980 in words is "four hundred forty-six million, six hundred sixty-six thousand, nine hundred eighty".