447213936 has 160 divisors (see below), whose sum is σ = 1308805120. Its totient is φ = 130636800.

The previous prime is 447213913. The next prime is 447213971. The reversal of 447213936 is 639312744.

It is a super-2 number, since 2×447213936² = 400000609105224192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) 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 (39).

It is a junction number, because it is equal to n+sod(n) for n = 447213894 and 447213903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1179795 + ... + 1180173.

It is an arithmetic number, because the mean of its divisors is an integer number (8180032).

Almost surely, 2^447213936 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 447213936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654402560).

447213936 is an abundant number, since it is smaller than the sum of its proper divisors (861591184).

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

447213936 is a wasteful number, since it uses less digits than its factorization.

447213936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 489 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 447213936 is about 21147.4333194362. The cubic root of 447213936 is about 764.7246854140.

The spelling of 447213936 in words is "four hundred forty-seven million, two hundred thirteen thousand, nine hundred thirty-six".