447378330 has 80 divisors (see below), whose sum is σ = 1252786464. Its totient is φ = 102241440.

The previous prime is 447378319. The next prime is 447378361. The reversal of 447378330 is 33873744.

It is a super-3 number, since 3×447378330³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 68925 + ... + 75135.

Almost surely, 2^447378330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447378330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626393232).

447378330 is an abundant number, since it is smaller than the sum of its proper divisors (805408134).

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

447378330 is an equidigital number, since it uses as much as digits as its factorization.

447378330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249 (or 6228 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The square root of 447378330 is about 21151.3198169760. The cubic root of 447378330 is about 764.8183771490.

The spelling of 447378330 in words is "four hundred forty-seven million, three hundred seventy-eight thousand, three hundred thirty".