2040006641 has 4 divisors (see below), whose sum is σ = 2040756900. Its totient is φ = 2039256384.

The previous prime is 2040006629. The next prime is 2040006691. The reversal of 2040006641 is 1466000402.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1497303025 + 542703616 = 38695^2 + 23296^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040006641 - 2¹⁴ = 2039990257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040006691) 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, 371036 + ... + 376493.

It is an arithmetic number, because the mean of its divisors is an integer number (510189225).

Almost surely, 2^2040006641 is an apocalyptic number.

It is an amenable number.

2040006641 is a deficient number, since it is larger than the sum of its proper divisors (750259).

2040006641 is an equidigital number, since it uses as much as digits as its factorization.

2040006641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750258.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2040006641 is about 45166.4326795907. The cubic root of 2040006641 is about 1268.2665173090.

The spelling of 2040006641 in words is "two billion, forty million, six thousand, six hundred forty-one".