446945140 has 12 divisors (see below), whose sum is σ = 938584836. Its totient is φ = 178778048.

The previous prime is 446945087. The next prime is 446945143. The reversal of 446945140 is 41549644.

It can be written as a sum of positive squares in 2 ways, for example, as 246552804 + 200392336 = 15702^2 + 14156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 446945140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (446945143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11173609 + ... + 11173648.

It is an arithmetic number, because the mean of its divisors is an integer number (78215403).

Almost surely, 2^446945140 is an apocalyptic number.

It is an amenable number.

446945140 is an abundant number, since it is smaller than the sum of its proper divisors (491639696).

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

446945140 is a wasteful number, since it uses less digits than its factorization.

446945140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22347266 (or 22347264 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 446945140 is about 21141.0770775758. The cubic root of 446945140 is about 764.5714432209.

The spelling of 446945140 in words is "four hundred forty-six million, nine hundred forty-five thousand, one hundred forty".