445361686 has 48 divisors (see below), whose sum is σ = 875169792. Its totient is φ = 167907600.

The previous prime is 445361681. The next prime is 445361689. The reversal of 445361686 is 686163544.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445361681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26755 + ... + 40081.

It is an arithmetic number, because the mean of its divisors is an integer number (18232704).

Almost surely, 2^445361686 is an apocalyptic number.

445361686 is a deficient number, since it is larger than the sum of its proper divisors (429808106).

445361686 is a wasteful number, since it uses less digits than its factorization.

445361686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13385 (or 13378 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 445361686 is about 21103.5941488648. The cubic root of 445361686 is about 763.6674573619.

The spelling of 445361686 in words is "four hundred forty-five million, three hundred sixty-one thousand, six hundred eighty-six".