2040660642 has 16 divisors (see below), whose sum is σ = 4088119392. Its totient is φ = 679087200.

The previous prime is 2040660599. The next prime is 2040660649. The reversal of 2040660642 is 2460660402.

It is not an unprimeable number, because it can be changed into a prime (2040660649) 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, 279348 + ... + 286559.

It is an arithmetic number, because the mean of its divisors is an integer number (255507462).

Almost surely, 2^2040660642 is an apocalyptic number.

2040660642 is an abundant number, since it is smaller than the sum of its proper divisors (2047458750).

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

2040660642 is a wasteful number, since it uses less digits than its factorization.

2040660642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566513.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2040660642 is about 45173.6720004031. The cubic root of 2040660642 is about 1268.4020330360.

The spelling of 2040660642 in words is "two billion, forty million, six hundred sixty thousand, six hundred forty-two".