2139391362 has 16 divisors (see below), whose sum is σ = 4279240512. Its totient is φ = 713054160.

The previous prime is 2139391351. The next prime is 2139391369. The reversal of 2139391362 is 2631939312.

It is a self number, because there is not a number n which added to its sum of digits gives 2139391362.

It is not an unprimeable number, because it can be changed into a prime (2139391369) 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, 87403 + ... + 109169.

It is an arithmetic number, because the mean of its divisors is an integer number (267452532).

Almost surely, 2^2139391362 is an apocalyptic number.

2139391362 is an abundant number, since it is smaller than the sum of its proper divisors (2139849150).

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

2139391362 is a wasteful number, since it uses less digits than its factorization.

2139391362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38153.

The product of its digits is 52488, while the sum is 39.

The square root of 2139391362 is about 46253.5551282277. Note that the first 3 decimals coincide. The cubic root of 2139391362 is about 1288.5365616934.

The spelling of 2139391362 in words is "two billion, one hundred thirty-nine million, three hundred ninety-one thousand, three hundred sixty-two".