449249191 has 8 divisors (see below), whose sum is σ = 476781984. Its totient is φ = 421839360.

The previous prime is 449249161. The next prime is 449249209. The reversal of 449249191 is 191942944.

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

It is not a de Polignac number, because 449249191 - 2⁵ = 449249159 is a prime.

It is a super-2 number, since 2×449249191² = 403649671228308962, 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 (449249161) 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, 23155 + ... + 37876.

It is an arithmetic number, because the mean of its divisors is an integer number (59597748).

Almost surely, 2^449249191 is an apocalyptic number.

449249191 is a deficient number, since it is larger than the sum of its proper divisors (27532793).

449249191 is a wasteful number, since it uses less digits than its factorization.

449249191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61481.

The product of its digits is 93312, while the sum is 43.

The square root of 449249191 is about 21195.4993099950. The cubic root of 449249191 is about 765.8830084674.

The spelling of 449249191 in words is "four hundred forty-nine million, two hundred forty-nine thousand, one hundred ninety-one".