445428044 has 12 divisors (see below), whose sum is σ = 783581568. Its totient is φ = 221547600.

The previous prime is 445428041. The next prime is 445428047. The reversal of 445428044 is 440824544.

It is an interprime number because it is at equal distance from previous prime (445428041) and next prime (445428047).

It is a super-2 number, since 2×445428044² = 396812284763331872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445427995 and 445428013.

It is not an unprimeable number, because it can be changed into a prime (445428041) 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 3 ways as a sum of consecutive naturals, for example, 290747 + ... + 292274.

It is an arithmetic number, because the mean of its divisors is an integer number (65298464).

Almost surely, 2^445428044 is an apocalyptic number.

It is an amenable number.

445428044 is a deficient number, since it is larger than the sum of its proper divisors (338153524).

445428044 is a wasteful number, since it uses less digits than its factorization.

445428044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583216 (or 583214 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 35.

The square root of 445428044 is about 21105.1662869545. The cubic root of 445428044 is about 763.7053837859.

The spelling of 445428044 in words is "four hundred forty-five million, four hundred twenty-eight thousand, forty-four".