445451444 has 24 divisors (see below), whose sum is σ = 791921088. Its totient is φ = 219199680.

The previous prime is 445451441. The next prime is 445451467. The reversal of 445451444 is 444154544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445451441) 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, 222512 + ... + 224504.

It is an arithmetic number, because the mean of its divisors is an integer number (32996712).

Almost surely, 2^445451444 is an apocalyptic number.

It is an amenable number.

445451444 is a deficient number, since it is larger than the sum of its proper divisors (346469644).

445451444 is a wasteful number, since it uses less digits than its factorization.

445451444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855 (or 2853 counting only the distinct ones).

The product of its digits is 102400, while the sum is 35.

The square root of 445451444 is about 21105.7206463082. The cubic root of 445451444 is about 763.7187569845.

The spelling of 445451444 in words is "four hundred forty-five million, four hundred fifty-one thousand, four hundred forty-four".