447244015140 has 72 divisors (see below), whose sum is σ = 1460997123768. Its totient is φ = 110090833920.

The previous prime is 447244015073. The next prime is 447244015181. The reversal of 447244015140 is 41510442744.

447244015140 is a `hidden beast` number, since 4 + 4 + 72 + 440 + 1 + 5 + 140 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 54017197056 + 393226818084 = 232416^2 + 627078^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 447244015095 and 447244015104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95562621 + ... + 95567300.

It is an arithmetic number, because the mean of its divisors is an integer number (20291626719).

Almost surely, 2^447244015140 is an apocalyptic number.

It is an amenable number.

447244015140 is an abundant number, since it is smaller than the sum of its proper divisors (1013753108628).

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

447244015140 is a wasteful number, since it uses less digits than its factorization.

447244015140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191129949 (or 191129944 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

Adding to 447244015140 its reverse (41510442744), we get a palindrome (488754457884).

The spelling of 447244015140 in words is "four hundred forty-seven billion, two hundred forty-four million, fifteen thousand, one hundred forty".