447420340981 has 8 divisors (see below), whose sum is σ = 480989393280. Its totient is φ = 414853350048.

The previous prime is 447420340957. The next prime is 447420341033. The reversal of 447420340981 is 189043024744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447420340981 - 2⁵ = 447420340949 is a prime.

It is a super-2 number, since 2×447420340981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447420340481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250514416 + ... + 250516201.

It is an arithmetic number, because the mean of its divisors is an integer number (60123674160).

Almost surely, 2^447420340981 is an apocalyptic number.

It is an amenable number.

447420340981 is a deficient number, since it is larger than the sum of its proper divisors (33569052299).

447420340981 is a wasteful number, since it uses less digits than its factorization.

447420340981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501030683.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 447420340981 in words is "four hundred forty-seven billion, four hundred twenty million, three hundred forty thousand, nine hundred eighty-one".