440518349 has 2 divisors, whose sum is σ = 440518350. Its totient is φ = 440518348.

The previous prime is 440518321. The next prime is 440518373. The reversal of 440518349 is 943815044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439195849 + 1322500 = 20957^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 440518349 - 2²⁰ = 439469773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440518549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220259174 + 220259175.

It is an arithmetic number, because the mean of its divisors is an integer number (220259175).

Almost surely, 2^440518349 is an apocalyptic number.

It is an amenable number.

440518349 is a deficient number, since it is larger than the sum of its proper divisors (1).

440518349 is an equidigital number, since it uses as much as digits as its factorization.

440518349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 440518349 is about 20988.5289860914. The cubic root of 440518349 is about 760.8890501858.

The spelling of 440518349 in words is "four hundred forty million, five hundred eighteen thousand, three hundred forty-nine".