447393936 has 80 divisors (see below), whose sum is σ = 1294970688. Its totient is φ = 131904000.

The previous prime is 447393923. The next prime is 447393937. The reversal of 447393936 is 639393744.

It is a super-2 number, since 2×447393936² = 400322667939144192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (447393937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8086 + ... + 30986.

Almost surely, 2^447393936 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 447393936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647485344).

447393936 is an abundant number, since it is smaller than the sum of its proper divisors (847576752).

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

447393936 is a wasteful number, since it uses less digits than its factorization.

447393936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22960 (or 22954 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 48.

The square root of 447393936 is about 21151.6887269078. The cubic root of 447393936 is about 764.8272701568.

The spelling of 447393936 in words is "four hundred forty-seven million, three hundred ninety-three thousand, nine hundred thirty-six".