1940022463 has 2 divisors, whose sum is σ = 1940022464. Its totient is φ = 1940022462.

The previous prime is 1940022437. The next prime is 1940022509. The reversal of 1940022463 is 3642200491.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940022463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940022433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970011231 + 970011232.

It is an arithmetic number, because the mean of its divisors is an integer number (970011232).

Almost surely, 2^1940022463 is an apocalyptic number.

1940022463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940022463 is an equidigital number, since it uses as much as digits as its factorization.

1940022463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1940022463 is about 44045.6860884241. The cubic root of 1940022463 is about 1247.1985181568.

The spelling of 1940022463 in words is "one billion, nine hundred forty million, twenty-two thousand, four hundred sixty-three".