449837664 has 24 divisors (see below), whose sum is σ = 1180824120. Its totient is φ = 149945856.

The previous prime is 449837651. The next prime is 449837681. The reversal of 449837664 is 466738944.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342809 + ... + 2343000.

It is an arithmetic number, because the mean of its divisors is an integer number (49201005).

Almost surely, 2^449837664 is an apocalyptic number.

It is an amenable number.

449837664 is an abundant number, since it is smaller than the sum of its proper divisors (730986456).

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

449837664 is a wasteful number, since it uses less digits than its factorization.

449837664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685822 (or 4685814 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 51.

The square root of 449837664 is about 21209.3767942389. The cubic root of 449837664 is about 766.2172734529.

The spelling of 449837664 in words is "four hundred forty-nine million, eight hundred thirty-seven thousand, six hundred sixty-four".