449491838 has 8 divisors (see below), whose sum is σ = 674568000. Its totient is φ = 224635840.

The previous prime is 449491837. The next prime is 449491843. The reversal of 449491838 is 838194944.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449491831) 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, 49838 + ... + 58161.

It is an arithmetic number, because the mean of its divisors is an integer number (84321000).

Almost surely, 2^449491838 is an apocalyptic number.

449491838 is a deficient number, since it is larger than the sum of its proper divisors (225076162).

449491838 is a wasteful number, since it uses less digits than its factorization.

449491838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110082.

The product of its digits is 995328, while the sum is 50.

The square root of 449491838 is about 21201.2225590884. Note that the first 3 decimals coincide. The cubic root of 449491838 is about 766.0208723892.

The spelling of 449491838 in words is "four hundred forty-nine million, four hundred ninety-one thousand, eight hundred thirty-eight".