447291456 has 56 divisors (see below), whose sum is σ = 1187647104. Its totient is φ = 148569600.

The previous prime is 447291451. The next prime is 447291457. The reversal of 447291456 is 654192744.

It is a super-2 number, since 2×447291456² = 400139293221199872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (447291451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52281 + ... + 60231.

It is an arithmetic number, because the mean of its divisors is an integer number (21207984).

Almost surely, 2^447291456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447291456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593823552).

447291456 is an abundant number, since it is smaller than the sum of its proper divisors (740355648).

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

447291456 is a wasteful number, since it uses less digits than its factorization.

447291456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8259 (or 8249 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 447291456 is about 21149.2660865572. The cubic root of 447291456 is about 764.7688686172.

The spelling of 447291456 in words is "four hundred forty-seven million, two hundred ninety-one thousand, four hundred fifty-six".