2399730427 has 2 divisors, whose sum is σ = 2399730428. Its totient is φ = 2399730426.

The previous prime is 2399730413. The next prime is 2399730467. The reversal of 2399730427 is 7240379932.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2399730427 - 2⁷ = 2399730299 is a prime.

It is a super-2 number, since 2×2399730427² = 11517412244539204658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2399730467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199865213 + 1199865214.

It is an arithmetic number, because the mean of its divisors is an integer number (1199865214).

Almost surely, 2^2399730427 is an apocalyptic number.

2399730427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2399730427 is an equidigital number, since it uses as much as digits as its factorization.

2399730427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 46.

The square root of 2399730427 is about 48987.0434604907. The cubic root of 2399730427 is about 1338.8157702183.

It can be divided in two parts, 239 and 9730427, that added together give a triangular number (9730666 = T₄₄₁₁).

The spelling of 2399730427 in words is "two billion, three hundred ninety-nine million, seven hundred thirty thousand, four hundred twenty-seven".