447251370240 has 144 divisors (see below), whose sum is σ = 1428756392448. Its totient is φ = 119238033408.

The previous prime is 447251370229. The next prime is 447251370259. The reversal of 447251370240 is 42073152744.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19161457 + ... + 19184783.

It is an arithmetic number, because the mean of its divisors is an integer number (9921919392).

Almost surely, 2^447251370240 is an apocalyptic number.

447251370240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447251370240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714378196224).

447251370240 is an abundant number, since it is smaller than the sum of its proper divisors (981505022208).

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

447251370240 is a wasteful number, since it uses less digits than its factorization.

447251370240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28344 (or 28330 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 447251370240 in words is "four hundred forty-seven billion, two hundred fifty-one million, three hundred seventy thousand, two hundred forty".