2001306492 has 18 divisors (see below), whose sum is σ = 5058858168. Its totient is φ = 667102152.

The previous prime is 2001306479. The next prime is 2001306497. The reversal of 2001306492 is 2946031002.

2001306492 is a `hidden beast` number, since 2 + 0 + 0 + 13 + 0 + 649 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001306497) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 27795888 + ... + 27795959.

It is an arithmetic number, because the mean of its divisors is an integer number (281047676).

Almost surely, 2^2001306492 is an apocalyptic number.

It is an amenable number.

2001306492 is an abundant number, since it is smaller than the sum of its proper divisors (3057551676).

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

2001306492 is a wasteful number, since it uses less digits than its factorization.

2001306492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55591857 (or 55591852 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2001306492 is about 44735.9641898998. The cubic root of 2001306492 is about 1260.1953363068.

Adding to 2001306492 its reverse (2946031002), we get a palindrome (4947337494).

The spelling of 2001306492 in words is "two billion, one million, three hundred six thousand, four hundred ninety-two".