448947780 has 48 divisors (see below), whose sum is σ = 1265087040. Its totient is φ = 118954368.

The previous prime is 448947749. The next prime is 448947841. The reversal of 448947780 is 87749844.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14410 + ... + 33249.

It is an arithmetic number, because the mean of its divisors is an integer number (26355980).

Almost surely, 2^448947780 is an apocalyptic number.

It is an amenable number.

448947780 is an abundant number, since it is smaller than the sum of its proper divisors (816139260).

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

448947780 is a wasteful number, since it uses less digits than its factorization.

448947780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47828 (or 47826 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 448947780 is about 21188.3878575035. The cubic root of 448947780 is about 765.7116876549.

The spelling of 448947780 in words is "four hundred forty-eight million, nine hundred forty-seven thousand, seven hundred eighty".