2006438771 has 8 divisors (see below), whose sum is σ = 2084328288. Its totient is φ = 1929928000.

The previous prime is 2006438767. The next prime is 2006438773. The reversal of 2006438771 is 1778346002.

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 2006438771 - 2² = 2006438767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2006438773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341720 + ... + 347541.

It is an arithmetic number, because the mean of its divisors is an integer number (260541036).

Almost surely, 2^2006438771 is an apocalyptic number.

2006438771 is a deficient number, since it is larger than the sum of its proper divisors (77889517).

2006438771 is an equidigital number, since it uses as much as digits as its factorization.

2006438771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689373.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2006438771 is about 44793.2893523126. The cubic root of 2006438771 is about 1261.2716587397.

The spelling of 2006438771 in words is "two billion, six million, four hundred thirty-eight thousand, seven hundred seventy-one".