2606040261 has 24 divisors (see below), whose sum is σ = 4111947840. Its totient is φ = 1577318400.

The previous prime is 2606040259. The next prime is 2606040271. The reversal of 2606040261 is 1620406062.

It is a happy number.

It is not a de Polignac number, because 2606040261 - 2¹ = 2606040259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606040221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59016 + ... + 93246.

It is an arithmetic number, because the mean of its divisors is an integer number (171331160).

Almost surely, 2^2606040261 is an apocalyptic number.

It is an amenable number.

2606040261 is a deficient number, since it is larger than the sum of its proper divisors (1505907579).

2606040261 is a wasteful number, since it uses less digits than its factorization.

2606040261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35017 (or 35014 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2606040261 is about 51049.3904077218. The cubic root of 2606040261 is about 1376.1328864600.

The spelling of 2606040261 in words is "two billion, six hundred six million, forty thousand, two hundred sixty-one".