445643412 has 24 divisors (see below), whose sum is σ = 1045648800. Its totient is φ = 147717216.

The previous prime is 445643399. The next prime is 445643441. The reversal of 445643412 is 214346544.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101587 + ... + 105882.

It is an arithmetic number, because the mean of its divisors is an integer number (43568700).

Almost surely, 2^445643412 is an apocalyptic number.

It is an amenable number.

445643412 is an abundant number, since it is smaller than the sum of its proper divisors (600005388).

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

445643412 is a wasteful number, since it uses less digits than its factorization.

445643412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207655 (or 207653 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 445643412 is about 21110.2679281908. The cubic root of 445643412 is about 763.8284498282.

Adding to 445643412 its reverse (214346544), we get a palindrome (659989956).

The spelling of 445643412 in words is "four hundred forty-five million, six hundred forty-three thousand, four hundred twelve".