449960816 has 20 divisors (see below), whose sum is σ = 872169624. Its totient is φ = 224884800.

The previous prime is 449960813. The next prime is 449960821. The reversal of 449960816 is 618069944.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449960813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47171 + ... + 55901.

Almost surely, 2^449960816 is an apocalyptic number.

It is an amenable number.

449960816 is a deficient number, since it is larger than the sum of its proper divisors (422208808).

449960816 is a wasteful number, since it uses less digits than its factorization.

449960816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11960 (or 11954 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 449960816 is about 21212.2798397532. The cubic root of 449960816 is about 766.2871894748.

The spelling of 449960816 in words is "four hundred forty-nine million, nine hundred sixty thousand, eight hundred sixteen".