1447247340 has 288 divisors, whose sum is σ = 5587545600. Its totient is φ = 300585600.

The previous prime is 1447247327. The next prime is 1447247381. The reversal of 1447247340 is 437427441.

It is a happy number.

1447247340 is a `hidden beast` number, since 144 + 7 + 2 + 473 + 40 = 666.

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 = 1447247295 and 1447247304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 678075 + ... + 680205.

It is an arithmetic number, because the mean of its divisors is an integer number (19401200).

Almost surely, 2^1447247340 is an apocalyptic number.

1447247340 is a gapful number since it is divisible by the number (10) 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 1447247340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2793772800).

1447247340 is an abundant number, since it is smaller than the sum of its proper divisors (4140298260).

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

1447247340 is a wasteful number, since it uses less digits than its factorization.

1447247340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 1447247340 is about 38042.7041625592. The cubic root of 1447247340 is about 1131.1345120243.

The spelling of 1447247340 in words is "one billion, four hundred forty-seven million, two hundred forty-seven thousand, three hundred forty".