2000381447 has 4 divisors (see below), whose sum is σ = 2000633856. Its totient is φ = 2000129040.

The previous prime is 2000381441. The next prime is 2000381519. The reversal of 2000381447 is 7441830002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2000381447 - 2¹⁰ = 2000380423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000381441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113918 + ... + 130299.

It is an arithmetic number, because the mean of its divisors is an integer number (500158464).

Almost surely, 2^2000381447 is an apocalyptic number.

2000381447 is a deficient number, since it is larger than the sum of its proper divisors (252409).

2000381447 is an equidigital number, since it uses as much as digits as its factorization.

2000381447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252408.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 2000381447 is about 44725.6240537793. The cubic root of 2000381447 is about 1260.0011436540.

The spelling of 2000381447 in words is "two billion, three hundred eighty-one thousand, four hundred forty-seven".