447493830 has 64 divisors (see below), whose sum is σ = 1244740608. Its totient is φ = 100840320.

The previous prime is 447493807. The next prime is 447493831. The reversal of 447493830 is 38394744.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447493831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97 + ... + 29916.

It is an arithmetic number, because the mean of its divisors is an integer number (19449072).

Almost surely, 2^447493830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447493830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622370304).

447493830 is an abundant number, since it is smaller than the sum of its proper divisors (797246778).

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

447493830 is a wasteful number, since it uses less digits than its factorization.

447493830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30101.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 447493830 is about 21154.0499668503. The cubic root of 447493830 is about 764.8841893977.

The spelling of 447493830 in words is "four hundred forty-seven million, four hundred ninety-three thousand, eight hundred thirty".