449718464 has 42 divisors (see below), whose sum is σ = 966360780. Its totient is φ = 207557376.

The previous prime is 449718449. The next prime is 449718487. The reversal of 449718464 is 464817944.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9974 + ... + 31605.

It is an arithmetic number, because the mean of its divisors is an integer number (23008590).

Almost surely, 2^449718464 is an apocalyptic number.

It is an amenable number.

449718464 is an abundant number, since it is smaller than the sum of its proper divisors (516642316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449718464 is a wasteful number, since it uses less digits than its factorization.

449718464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41617 (or 41594 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 449718464 is about 21206.5665302047. The cubic root of 449718464 is about 766.1495889118.

It can be divided in two parts, 44971 and 8464, that added together give a palindrome (53435).

The spelling of 449718464 in words is "four hundred forty-nine million, seven hundred eighteen thousand, four hundred sixty-four".