447342756 has 72 divisors (see below), whose sum is σ = 1217684160. Its totient is φ = 127447488.

The previous prime is 447342751. The next prime is 447342761. The reversal of 447342756 is 657243744.

It is an interprime number because it is at equal distance from previous prime (447342751) and next prime (447342761).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (447342751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257266 + ... + 258998.

It is an arithmetic number, because the mean of its divisors is an integer number (16912280).

Almost surely, 2^447342756 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 447342756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608842080).

447342756 is an abundant number, since it is smaller than the sum of its proper divisors (770341404).

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

447342756 is a wasteful number, since it uses less digits than its factorization.

447342756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193 (or 2184 counting only the distinct ones).

The product of its digits is 564480, while the sum is 42.

The square root of 447342756 is about 21150.4788598273. The cubic root of 447342756 is about 764.7981046948.

The spelling of 447342756 in words is "four hundred forty-seven million, three hundred forty-two thousand, seven hundred fifty-six".