1418336641 has 2 divisors, whose sum is σ = 1418336642. Its totient is φ = 1418336640.

The previous prime is 1418336629. The next prime is 1418336701. The reversal of 1418336641 is 1466338141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030089025 + 388247616 = 32095^2 + 19704^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418336641 - 2⁵ = 1418336609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1418336641.

It is not a weakly prime, because it can be changed into another prime (1418336141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709168320 + 709168321.

It is an arithmetic number, because the mean of its divisors is an integer number (709168321).

Almost surely, 2^1418336641 is an apocalyptic number.

It is an amenable number.

1418336641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1418336641 is an equidigital number, since it uses as much as digits as its factorization.

1418336641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 1418336641 is about 37660.8104134789. The cubic root of 1418336641 is about 1123.5518198255.

The spelling of 1418336641 in words is "one billion, four hundred eighteen million, three hundred thirty-six thousand, six hundred forty-one".