449273913 has 16 divisors (see below), whose sum is σ = 655479552. Its totient is φ = 271458000.

The previous prime is 449273899. The next prime is 449273971. The reversal of 449273913 is 319372944.

It is not a de Polignac number, because 449273913 - 2⁴ = 449273897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449273813) 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, 9643 + ... + 31488.

It is an arithmetic number, because the mean of its divisors is an integer number (40967472).

Almost surely, 2^449273913 is an apocalyptic number.

It is an amenable number.

449273913 is a deficient number, since it is larger than the sum of its proper divisors (206205639).

449273913 is a wasteful number, since it uses less digits than its factorization.

449273913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41476.

The product of its digits is 163296, while the sum is 42.

The square root of 449273913 is about 21196.0824918191. The cubic root of 449273913 is about 765.8970569530.

The spelling of 449273913 in words is "four hundred forty-nine million, two hundred seventy-three thousand, nine hundred thirteen".