2040712261 has 6 divisors (see below), whose sum is σ = 2373889830. Its totient is φ = 1749181896.

The previous prime is 2040712243. The next prime is 2040712277. The reversal of 2040712261 is 1622170402.

It can be written as a sum of positive squares in only one way, i.e., 1874457025 + 166255236 = 43295^2 + 12894^2 .

It is not a de Polignac number, because 2040712261 - 2¹³ = 2040704069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040712211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20823546 + ... + 20823643.

It is an arithmetic number, because the mean of its divisors is an integer number (395648305).

Almost surely, 2^2040712261 is an apocalyptic number.

It is an amenable number.

2040712261 is a deficient number, since it is larger than the sum of its proper divisors (333177569).

2040712261 is an equidigital number, since it uses as much as digits as its factorization.

2040712261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41647203 (or 41647196 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2040712261 is about 45174.2433362198. The cubic root of 2040712261 is about 1268.4127277903.

Adding to 2040712261 its reverse (1622170402), we get a palindrome (3662882663).

The spelling of 2040712261 in words is "two billion, forty million, seven hundred twelve thousand, two hundred sixty-one".