447115992 has 64 divisors (see below), whose sum is σ = 1152403200. Its totient is φ = 144455040.

The previous prime is 447115967. The next prime is 447115993. The reversal of 447115992 is 299511744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447115993) 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, 275359 + ... + 276977.

It is an arithmetic number, because the mean of its divisors is an integer number (18006300).

Almost surely, 2^447115992 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 447115992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576201600).

447115992 is an abundant number, since it is smaller than the sum of its proper divisors (705287208).

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

447115992 is a wasteful number, since it uses less digits than its factorization.

447115992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1972 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 447115992 is about 21145.1174506078. The cubic root of 447115992 is about 764.6688540715.

The spelling of 447115992 in words is "four hundred forty-seven million, one hundred fifteen thousand, nine hundred ninety-two".