449621872 has 40 divisors (see below), whose sum is σ = 996630656. Its totient is φ = 192494016.

The previous prime is 449621863. The next prime is 449621903. The reversal of 449621872 is 278126944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164743 + ... + 167449.

Almost surely, 2^449621872 is an apocalyptic number.

It is an amenable number.

449621872 is an abundant number, since it is smaller than the sum of its proper divisors (547008784).

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

449621872 is a wasteful number, since it uses less digits than its factorization.

449621872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205 (or 4199 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 449621872 is about 21204.2890001056. The cubic root of 449621872 is about 766.0947329476.

The spelling of 449621872 in words is "four hundred forty-nine million, six hundred twenty-one thousand, eight hundred seventy-two".