2709665238 has 32 divisors (see below), whose sum is σ = 6196437504. Its totient is φ = 773825472.

The previous prime is 2709665237. The next prime is 2709665261. The reversal of 2709665238 is 8325669072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2709665237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82431 + ... + 110517.

It is an arithmetic number, because the mean of its divisors is an integer number (193638672).

Almost surely, 2^2709665238 is an apocalyptic number.

2709665238 is an abundant number, since it is smaller than the sum of its proper divisors (3486772266).

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

2709665238 is a wasteful number, since it uses less digits than its factorization.

2709665238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30396.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 2709665238 is about 52054.4449398896. Note that the first 3 decimals coincide. The cubic root of 2709665238 is about 1394.1362291879.

The spelling of 2709665238 in words is "two billion, seven hundred nine million, six hundred sixty-five thousand, two hundred thirty-eight".