2345840437 has 2 divisors, whose sum is σ = 2345840438. Its totient is φ = 2345840436.

The previous prime is 2345840407. The next prime is 2345840459. The reversal of 2345840437 is 7340485432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1979271121 + 366569316 = 44489^2 + 19146^2 .

It is a cyclic number.

It is not a de Polignac number, because 2345840437 - 2¹¹ = 2345838389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2345840437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2345840407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172920218 + 1172920219.

It is an arithmetic number, because the mean of its divisors is an integer number (1172920219).

Almost surely, 2^2345840437 is an apocalyptic number.

It is an amenable number.

2345840437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345840437 is an equidigital number, since it uses as much as digits as its factorization.

2345840437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 40.

The square root of 2345840437 is about 48433.8769561141. The cubic root of 2345840437 is about 1328.7180133761.

The spelling of 2345840437 in words is "two billion, three hundred forty-five million, eight hundred forty thousand, four hundred thirty-seven".