2400229991 has 2 divisors, whose sum is σ = 2400229992. Its totient is φ = 2400229990.

The previous prime is 2400229957. The next prime is 2400230003. The reversal of 2400229991 is 1999220042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2400229991 - 2¹⁸ = 2399967847 is a prime.

It is a super-2 number, since 2×2400229991² = 11522208019391720162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400225991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200114995 + 1200114996.

It is an arithmetic number, because the mean of its divisors is an integer number (1200114996).

Almost surely, 2^2400229991 is an apocalyptic number.

2400229991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400229991 is an equidigital number, since it uses as much as digits as its factorization.

2400229991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 2400229991 is about 48992.1421352445. The cubic root of 2400229991 is about 1338.9086664521.

The spelling of 2400229991 in words is "two billion, four hundred million, two hundred twenty-nine thousand, nine hundred ninety-one".