445199549 has 4 divisors (see below), whose sum is σ = 445242336. Its totient is φ = 445156764.

The previous prime is 445199543. The next prime is 445199563. The reversal of 445199549 is 945991544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445199549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445199497 and 445199506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445199543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5402 + ... + 30324.

It is an arithmetic number, because the mean of its divisors is an integer number (111310584).

Almost surely, 2^445199549 is an apocalyptic number.

It is an amenable number.

445199549 is a deficient number, since it is larger than the sum of its proper divisors (42787).

445199549 is a wasteful number, since it uses less digits than its factorization.

445199549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42786.

The product of its digits is 1166400, while the sum is 50.

The square root of 445199549 is about 21099.7523445182. The cubic root of 445199549 is about 763.5747733082.

The spelling of 445199549 in words is "four hundred forty-five million, one hundred ninety-nine thousand, five hundred forty-nine".