2340491639 has 2 divisors, whose sum is σ = 2340491640. Its totient is φ = 2340491638.

The previous prime is 2340491627. The next prime is 2340491669. The reversal of 2340491639 is 9361940432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2340491639 - 2¹⁶ = 2340426103 is a prime.

It is a super-2 number, since 2×2340491639² = 10955802224457812642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2340491596 and 2340491605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340491669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170245819 + 1170245820.

It is an arithmetic number, because the mean of its divisors is an integer number (1170245820).

Almost surely, 2^2340491639 is an apocalyptic number.

2340491639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340491639 is an equidigital number, since it uses as much as digits as its factorization.

2340491639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 2340491639 is about 48378.6279156406. The cubic root of 2340491639 is about 1327.7073659579.

The spelling of 2340491639 in words is "two billion, three hundred forty million, four hundred ninety-one thousand, six hundred thirty-nine".