445728612 has 24 divisors (see below), whose sum is σ = 1188609856. Its totient is φ = 127351008.

The previous prime is 445728611. The next prime is 445728623. The reversal of 445728612 is 216827544.

It is not an unprimeable number, because it can be changed into a prime (445728611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2653063 + ... + 2653230.

Almost surely, 2^445728612 is an apocalyptic number.

445728612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

445728612 is an abundant number, since it is smaller than the sum of its proper divisors (742881244).

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

445728612 is a wasteful number, since it uses less digits than its factorization.

445728612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306307 (or 5306305 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 445728612 is about 21112.2858070840. The cubic root of 445728612 is about 763.8771240486.

The spelling of 445728612 in words is "four hundred forty-five million, seven hundred twenty-eight thousand, six hundred twelve".