2687234394 has 64 divisors (see below), whose sum is σ = 6112641024. Its totient is φ = 781319616.

The previous prime is 2687234393. The next prime is 2687234413. The reversal of 2687234394 is 4934327862.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2687234393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139879 + ... + 157925.

It is an arithmetic number, because the mean of its divisors is an integer number (95510016).

Almost surely, 2^2687234394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2687234394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3056320512).

2687234394 is an abundant number, since it is smaller than the sum of its proper divisors (3425406630).

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

2687234394 is a wasteful number, since it uses less digits than its factorization.

2687234394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18171.

The product of its digits is 1741824, while the sum is 48.

The square root of 2687234394 is about 51838.5415882816. The cubic root of 2687234394 is about 1390.2786381352.

The spelling of 2687234394 in words is "two billion, six hundred eighty-seven million, two hundred thirty-four thousand, three hundred ninety-four".