2356040189 has 4 divisors (see below), whose sum is σ = 2356469724. Its totient is φ = 2355610656.

The previous prime is 2356040177. The next prime is 2356040209. The reversal of 2356040189 is 9810406532.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1908379225 + 447660964 = 43685^2 + 21158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2356040189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2356040689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206432 + ... + 217545.

It is an arithmetic number, because the mean of its divisors is an integer number (589117431).

Almost surely, 2^2356040189 is an apocalyptic number.

It is an amenable number.

2356040189 is a deficient number, since it is larger than the sum of its proper divisors (429535).

2356040189 is an equidigital number, since it uses as much as digits as its factorization.

2356040189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429534.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 2356040189 is about 48539.0583860050. The cubic root of 2356040189 is about 1330.6409914571.

The spelling of 2356040189 in words is "two billion, three hundred fifty-six million, forty thousand, one hundred eighty-nine".