449071287 has 8 divisors (see below), whose sum is σ = 684299136. Its totient is φ = 256612152.

The previous prime is 449071283. The next prime is 449071307. The reversal of 449071287 is 782170944.

It is a happy number.

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

It is not a de Polignac number, because 449071287 - 2² = 449071283 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449071283) 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, 10692153 + ... + 10692194.

It is an arithmetic number, because the mean of its divisors is an integer number (85537392).

Almost surely, 2^449071287 is an apocalyptic number.

449071287 is a deficient number, since it is larger than the sum of its proper divisors (235227849).

449071287 is a wasteful number, since it uses less digits than its factorization.

449071287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21384357.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 449071287 is about 21191.3021544218. The cubic root of 449071287 is about 765.7818978120.

The spelling of 449071287 in words is "four hundred forty-nine million, seventy-one thousand, two hundred eighty-seven".