449147238 has 16 divisors (see below), whose sum is σ = 898548336. Its totient is φ = 149673440.

The previous prime is 449147233. The next prime is 449147249. The reversal of 449147238 is 832741944.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 449147238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449147233) 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, 18628 + ... + 35288.

It is an arithmetic number, because the mean of its divisors is an integer number (56159271).

Almost surely, 2^449147238 is an apocalyptic number.

449147238 is an abundant number, since it is smaller than the sum of its proper divisors (449401098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449147238 is a wasteful number, since it uses less digits than its factorization.

449147238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21159.

The product of its digits is 193536, while the sum is 42.

The square root of 449147238 is about 21193.0941110542. The cubic root of 449147238 is about 765.8250673666.

The spelling of 449147238 in words is "four hundred forty-nine million, one hundred forty-seven thousand, two hundred thirty-eight".