449388338949 has 12 divisors (see below), whose sum is σ = 708127079712. Its totient is φ = 272356569000.

The previous prime is 449388338923. The next prime is 449388338981. The reversal of 449388338949 is 949833883944.

449388338949 is a `hidden beast` number, since 44 + 93 + 8 + 83 + 389 + 49 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-449388338949 is a prime.

It is a super-3 number, since 3×449388338949³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449388338909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2269637977 + ... + 2269638174.

It is an arithmetic number, because the mean of its divisors is an integer number (59010589976).

Almost surely, 2^449388338949 is an apocalyptic number.

It is an amenable number.

449388338949 is a deficient number, since it is larger than the sum of its proper divisors (258738740763).

449388338949 is a wasteful number, since it uses less digits than its factorization.

449388338949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539276168 (or 4539276165 counting only the distinct ones).

The product of its digits is 644972544, while the sum is 72.

The spelling of 449388338949 in words is "four hundred forty-nine billion, three hundred eighty-eight million, three hundred thirty-eight thousand, nine hundred forty-nine".