418371389 has 2 divisors, whose sum is σ = 418371390. Its totient is φ = 418371388.

The previous prime is 418371337. The next prime is 418371397. The reversal of 418371389 is 983173814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323640100 + 94731289 = 17990^2 + 9733^2 .

It is a cyclic number.

It is not a de Polignac number, because 418371389 - 2¹² = 418367293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418371329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209185694 + 209185695.

It is an arithmetic number, because the mean of its divisors is an integer number (209185695).

Almost surely, 2^418371389 is an apocalyptic number.

It is an amenable number.

418371389 is a deficient number, since it is larger than the sum of its proper divisors (1).

418371389 is an equidigital number, since it uses as much as digits as its factorization.

418371389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 418371389 is about 20454.1288985867. The cubic root of 418371389 is about 747.9180118559.

The spelling of 418371389 in words is "four hundred eighteen million, three hundred seventy-one thousand, three hundred eighty-nine".