2343440189 has 2 divisors, whose sum is σ = 2343440190. Its totient is φ = 2343440188.

The previous prime is 2343440167. The next prime is 2343440219. The reversal of 2343440189 is 9810443432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1639440100 + 704000089 = 40490^2 + 26533^2 .

It is a cyclic number.

It is not a de Polignac number, because 2343440189 - 2¹² = 2343436093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2343440989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171720094 + 1171720095.

It is an arithmetic number, because the mean of its divisors is an integer number (1171720095).

Almost surely, 2^2343440189 is an apocalyptic number.

It is an amenable number.

2343440189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2343440189 is an equidigital number, since it uses as much as digits as its factorization.

2343440189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 2343440189 is about 48409.0920075971. The cubic root of 2343440189 is about 1328.2646803100.

The spelling of 2343440189 in words is "two billion, three hundred forty-three million, four hundred forty thousand, one hundred eighty-nine".