1056422399 has 2 divisors, whose sum is σ = 1056422400. Its totient is φ = 1056422398.

The previous prime is 1056422369. The next prime is 1056422417. The reversal of 1056422399 is 9932246501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056422399 is a prime.

It is a super-2 number, since 2×1056422399² = 2232056570217830402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056422369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528211199 + 528211200.

It is an arithmetic number, because the mean of its divisors is an integer number (528211200).

Almost surely, 2^1056422399 is an apocalyptic number.

1056422399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056422399 is an equidigital number, since it uses as much as digits as its factorization.

1056422399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1056422399 is about 32502.6521840911. The cubic root of 1056422399 is about 1018.4644326675.

The spelling of 1056422399 in words is "one billion, fifty-six million, four hundred twenty-two thousand, three hundred ninety-nine".