1024402991 has 2 divisors, whose sum is σ = 1024402992. Its totient is φ = 1024402990.

The previous prime is 1024402961. The next prime is 1024402997. The reversal of 1024402991 is 1992044201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1024402991 - 2²⁶ = 957294127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1024402997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512201495 + 512201496.

It is an arithmetic number, because the mean of its divisors is an integer number (512201496).

Almost surely, 2^1024402991 is an apocalyptic number.

1024402991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024402991 is an equidigital number, since it uses as much as digits as its factorization.

1024402991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1024402991 is about 32006.2961149834. The cubic root of 1024402991 is about 1008.0690457108.

The spelling of 1024402991 in words is "one billion, twenty-four million, four hundred two thousand, nine hundred ninety-one".