449085639 has 16 divisors (see below), whose sum is σ = 610070400. Its totient is φ = 293764896.

The previous prime is 449085629. The next prime is 449085641. The reversal of 449085639 is 936580944.

It is not a de Polignac number, because 449085639 - 2⁵ = 449085607 is a prime.

It is a super-2 number, since 2×449085639² = 403355822312076642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449085629) 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, 106432 + ... + 110570.

It is an arithmetic number, because the mean of its divisors is an integer number (38129400).

Almost surely, 2^449085639 is an apocalyptic number.

449085639 is a deficient number, since it is larger than the sum of its proper divisors (160984761).

449085639 is a wasteful number, since it uses less digits than its factorization.

449085639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 449085639 is about 21191.6407812137. The cubic root of 449085639 is about 765.7900556740.

The spelling of 449085639 in words is "four hundred forty-nine million, eighty-five thousand, six hundred thirty-nine".