1422436681 has 2 divisors, whose sum is σ = 1422436682. Its totient is φ = 1422436680.

The previous prime is 1422436669. The next prime is 1422436753. The reversal of 1422436681 is 1866342241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1185769225 + 236667456 = 34435^2 + 15384^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422436681 - 2⁷ = 1422436553 is a prime.

It is a super-2 number, since 2×1422436681² = 4046652222908591522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1422436681.

It is not a weakly prime, because it can be changed into another prime (1422436381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711218340 + 711218341.

It is an arithmetic number, because the mean of its divisors is an integer number (711218341).

Almost surely, 2^1422436681 is an apocalyptic number.

It is an amenable number.

1422436681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422436681 is an equidigital number, since it uses as much as digits as its factorization.

1422436681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 37.

The square root of 1422436681 is about 37715.2049046535. The cubic root of 1422436681 is about 1124.6334097088.

It can be divided in two parts, 14224 and 36681, that added together give a palindrome (50905).

The spelling of 1422436681 in words is "one billion, four hundred twenty-two million, four hundred thirty-six thousand, six hundred eighty-one".