447555340 has 12 divisors (see below), whose sum is σ = 939866256. Its totient is φ = 179022128.

The previous prime is 447555313. The next prime is 447555349. The reversal of 447555340 is 43555744.

It is a self number, because there is not a number n which added to its sum of digits gives 447555340.

It is not an unprimeable number, because it can be changed into a prime (447555349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11188864 + ... + 11188903.

It is an arithmetic number, because the mean of its divisors is an integer number (78322188).

Almost surely, 2^447555340 is an apocalyptic number.

It is an amenable number.

447555340 is an abundant number, since it is smaller than the sum of its proper divisors (492310916).

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

447555340 is a wasteful number, since it uses less digits than its factorization.

447555340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22377776 (or 22377774 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 37.

The square root of 447555340 is about 21155.5037756136. The cubic root of 447555340 is about 764.9192333602.

The spelling of 447555340 in words is "four hundred forty-seven million, five hundred fifty-five thousand, three hundred forty".