445651444 has 12 divisors (see below), whose sum is σ = 891302944. Its totient is φ = 190993464.

The previous prime is 445651433. The next prime is 445651457. The reversal of 445651444 is 444156544.

It is a happy number.

445651444 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7958034 + ... + 7958089.

Almost surely, 2^445651444 is an apocalyptic number.

It is an amenable number.

445651444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

445651444 is a wasteful number, since it uses less digits than its factorization.

445651444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15916134 (or 15916132 counting only the distinct ones).

The product of its digits is 153600, while the sum is 37.

The square root of 445651444 is about 21110.4581665107. The cubic root of 445651444 is about 763.8330387238.

The spelling of 445651444 in words is "four hundred forty-five million, six hundred fifty-one thousand, four hundred forty-four".