449191193 has 4 divisors (see below), whose sum is σ = 490026768. Its totient is φ = 408355620.

The previous prime is 449191181. The next prime is 449191207. The reversal of 449191193 is 391191944.

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.

It is a cyclic number.

It is not a de Polignac number, because 449191193 - 2⁴ = 449191177 is a prime.

It is a super-3 number, since 3×449191193³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 449191193.

It is not an unprimeable number, because it can be changed into a prime (449191993) 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, 20417771 + ... + 20417792.

It is an arithmetic number, because the mean of its divisors is an integer number (122506692).

Almost surely, 2^449191193 is an apocalyptic number.

It is an amenable number.

449191193 is a deficient number, since it is larger than the sum of its proper divisors (40835575).

449191193 is a wasteful number, since it uses less digits than its factorization.

449191193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40835574.

The product of its digits is 34992, while the sum is 41.

The square root of 449191193 is about 21194.1310980186. The cubic root of 449191193 is about 765.8500485903.

The spelling of 449191193 in words is "four hundred forty-nine million, one hundred ninety-one thousand, one hundred ninety-three".