447749394 has 32 divisors (see below), whose sum is σ = 912155904. Its totient is φ = 146484480.

The previous prime is 447749389. The next prime is 447749413. The reversal of 447749394 is 493947744.

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, 216007 + ... + 218069.

It is an arithmetic number, because the mean of its divisors is an integer number (28504872).

Almost surely, 2^447749394 is an apocalyptic number.

447749394 is an abundant number, since it is smaller than the sum of its proper divisors (464406510).

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

447749394 is a wasteful number, since it uses less digits than its factorization.

447749394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722.

The product of its digits is 3048192, while the sum is 51.

The square root of 447749394 is about 21160.0896500936. The cubic root of 447749394 is about 765.0297702969.

The spelling of 447749394 in words is "four hundred forty-seven million, seven hundred forty-nine thousand, three hundred ninety-four".