445055869 has 8 divisors (see below), whose sum is σ = 483972408. Its totient is φ = 407554560.

The previous prime is 445055851. The next prime is 445055873. The reversal of 445055869 is 968550544.

It can be written as a sum of positive squares in 4 ways, for example, as 258405625 + 186650244 = 16075^2 + 13662^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445055869 - 2⁹ = 445055357 is a prime.

It is a super-2 number, since 2×445055869² = 396149453062690322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445055969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353152 + ... + 354409.

It is an arithmetic number, because the mean of its divisors is an integer number (60496551).

Almost surely, 2^445055869 is an apocalyptic number.

It is an amenable number.

445055869 is a deficient number, since it is larger than the sum of its proper divisors (38916539).

445055869 is a wasteful number, since it uses less digits than its factorization.

445055869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707615.

The product of its (nonzero) digits is 864000, while the sum is 46.

The square root of 445055869 is about 21096.3472904671. The cubic root of 445055869 is about 763.4926212124.

The spelling of 445055869 in words is "four hundred forty-five million, fifty-five thousand, eight hundred sixty-nine".