1022388491 has 2 divisors, whose sum is σ = 1022388492. Its totient is φ = 1022388490.

The previous prime is 1022388469. The next prime is 1022388527. The reversal of 1022388491 is 1948832201.

1022388491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022388491 - 2¹⁴ = 1022372107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022388431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511194245 + 511194246.

It is an arithmetic number, because the mean of its divisors is an integer number (511194246).

Almost surely, 2^1022388491 is an apocalyptic number.

1022388491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022388491 is an equidigital number, since it uses as much as digits as its factorization.

1022388491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1022388491 is about 31974.8102574511. The cubic root of 1022388491 is about 1007.4078190470.

The spelling of 1022388491 in words is "one billion, twenty-two million, three hundred eighty-eight thousand, four hundred ninety-one".