2709557394 has 16 divisors (see below), whose sum is σ = 5435490720. Its totient is φ = 900456480.

The previous prime is 2709557369. The next prime is 2709557399. The reversal of 2709557394 is 4937559072.

It is not an unprimeable number, because it can be changed into a prime (2709557399) 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, 680179 + ... + 684150.

It is an arithmetic number, because the mean of its divisors is an integer number (339718170).

Almost surely, 2^2709557394 is an apocalyptic number.

2709557394 is an abundant number, since it is smaller than the sum of its proper divisors (2725933326).

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

2709557394 is a wasteful number, since it uses less digits than its factorization.

2709557394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364665.

The product of its (nonzero) digits is 2381400, while the sum is 51.

The square root of 2709557394 is about 52053.4090526259. The cubic root of 2709557394 is about 1394.1177335179.

The spelling of 2709557394 in words is "two billion, seven hundred nine million, five hundred fifty-seven thousand, three hundred ninety-four".