445994817 has 8 divisors (see below), whose sum is σ = 620514624. Its totient is φ = 284402448.

The previous prime is 445994803. The next prime is 445994819. The reversal of 445994817 is 718499544.

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

It is not a de Polignac number, because 445994817 - 2¹⁴ = 445978433 is a prime.

It is a super-2 number, since 2×445994817² = 397822753581726978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445994817.

It is not an unprimeable number, because it can be changed into a prime (445994819) 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, 3231778 + ... + 3231915.

It is an arithmetic number, because the mean of its divisors is an integer number (77564328).

Almost surely, 2^445994817 is an apocalyptic number.

It is an amenable number.

445994817 is a deficient number, since it is larger than the sum of its proper divisors (174519807).

445994817 is a wasteful number, since it uses less digits than its factorization.

445994817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463719.

The product of its digits is 1451520, while the sum is 51.

The square root of 445994817 is about 21118.5893705048. The cubic root of 445994817 is about 764.0291653249.

The spelling of 445994817 in words is "four hundred forty-five million, nine hundred ninety-four thousand, eight hundred seventeen".