1220443463 has 2 divisors, whose sum is σ = 1220443464. Its totient is φ = 1220443462.

The previous prime is 1220443451. The next prime is 1220443489. The reversal of 1220443463 is 3643440221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220443463 - 2¹⁰ = 1220442439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220443403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610221731 + 610221732.

It is an arithmetic number, because the mean of its divisors is an integer number (610221732).

Almost surely, 2^1220443463 is an apocalyptic number.

1220443463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220443463 is an equidigital number, since it uses as much as digits as its factorization.

1220443463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 1220443463 is about 34934.8459707496. The cubic root of 1220443463 is about 1068.6591826071.

Adding to 1220443463 its reverse (3643440221), we get a palindrome (4863883684).

The spelling of 1220443463 in words is "one billion, two hundred twenty million, four hundred forty-three thousand, four hundred sixty-three".