449806137 has 16 divisors (see below), whose sum is σ = 655845120. Its totient is φ = 271950800.

The previous prime is 449806129. The next prime is 449806139. The reversal of 449806137 is 731608944.

It is not a de Polignac number, because 449806137 - 2³ = 449806129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449806139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439 + ... + 30092.

It is an arithmetic number, because the mean of its divisors is an integer number (40990320).

Almost surely, 2^449806137 is an apocalyptic number.

It is an amenable number.

449806137 is a deficient number, since it is larger than the sum of its proper divisors (206038983).

449806137 is a wasteful number, since it uses less digits than its factorization.

449806137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32964.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 449806137 is about 21208.6335486283. The cubic root of 449806137 is about 766.1993728498.

The spelling of 449806137 in words is "four hundred forty-nine million, eight hundred six thousand, one hundred thirty-seven".