2001049047 has 12 divisors (see below), whose sum is σ = 2898985440. Its totient is φ = 1330072128.

The previous prime is 2001049021. The next prime is 2001049081. The reversal of 2001049047 is 7409401002.

It is a happy number.

It is not a de Polignac number, because 2001049047 - 2⁶ = 2001048983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001049047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001049007) 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 11 ways as a sum of consecutive naturals, for example, 326847 + ... + 332912.

It is an arithmetic number, because the mean of its divisors is an integer number (241582120).

Almost surely, 2^2001049047 is an apocalyptic number.

2001049047 is a deficient number, since it is larger than the sum of its proper divisors (897936393).

2001049047 is a wasteful number, since it uses less digits than its factorization.

2001049047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660102 (or 660099 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2001049047 is about 44733.0867144220. The cubic root of 2001049047 is about 1260.1412974573.

The spelling of 2001049047 in words is "two billion, one million, forty-nine thousand, forty-seven".