447246140 has 24 divisors (see below), whose sum is σ = 1024600752. Its totient is φ = 162634880.

The previous prime is 447246131. The next prime is 447246143. The reversal of 447246140 is 41642744.

It is a junction number, because it is equal to n+sod(n) for n = 447246097 and 447246106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447246143) 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, 1016249 + ... + 1016688.

It is an arithmetic number, because the mean of its divisors is an integer number (42691698).

Almost surely, 2^447246140 is an apocalyptic number.

It is an amenable number.

447246140 is an abundant number, since it is smaller than the sum of its proper divisors (577354612).

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

447246140 is a wasteful number, since it uses less digits than its factorization.

447246140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032957 (or 2032955 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 447246140 is about 21148.1947220088. The cubic root of 447246140 is about 764.7430409859.

Adding to 447246140 its reverse (41642744), we get a palindrome (488888884).

The spelling of 447246140 in words is "four hundred forty-seven million, two hundred forty-six thousand, one hundred forty".