446542564 has 12 divisors (see below), whose sum is σ = 841561084. Its totient is φ = 206096544.

The previous prime is 446542549. The next prime is 446542571. The reversal of 446542564 is 465245644.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32012964 + 414529600 = 5658^2 + 20360^2 .

It is a super-2 number, since 2×446542564² = 398800522927388192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4293627 + ... + 4293730.

Almost surely, 2^446542564 is an apocalyptic number.

It is an amenable number.

446542564 is a deficient number, since it is larger than the sum of its proper divisors (395018520).

446542564 is a wasteful number, since it uses less digits than its factorization.

446542564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587374 (or 8587372 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

The square root of 446542564 is about 21131.5537526231. The cubic root of 446542564 is about 764.3418172958.

The spelling of 446542564 in words is "four hundred forty-six million, five hundred forty-two thousand, five hundred sixty-four".