447012780 has 24 divisors (see below), whose sum is σ = 1251635952. Its totient is φ = 119203392.

The previous prime is 447012767. The next prime is 447012781. The reversal of 447012780 is 87210744.

It is not an unprimeable number, because it can be changed into a prime (447012781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725047 + ... + 3725166.

It is an arithmetic number, because the mean of its divisors is an integer number (52151498).

Almost surely, 2^447012780 is an apocalyptic number.

It is an amenable number.

447012780 is an abundant number, since it is smaller than the sum of its proper divisors (804623172).

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

447012780 is a wasteful number, since it uses less digits than its factorization.

447012780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450225 (or 7450223 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 447012780 is about 21142.6767463347. The cubic root of 447012780 is about 764.6100109698.

The spelling of 447012780 in words is "four hundred forty-seven million, twelve thousand, seven hundred eighty".