440246413 has 2 divisors, whose sum is σ = 440246414. Its totient is φ = 440246412.

The previous prime is 440246357. The next prime is 440246423. The reversal of 440246413 is 314642044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237098404 + 203148009 = 15398^2 + 14253^2 .

It is a cyclic number.

It is not a de Polignac number, because 440246413 - 2¹³ = 440238221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440246423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220123206 + 220123207.

It is an arithmetic number, because the mean of its divisors is an integer number (220123207).

Almost surely, 2^440246413 is an apocalyptic number.

It is an amenable number.

440246413 is a deficient number, since it is larger than the sum of its proper divisors (1).

440246413 is an equidigital number, since it uses as much as digits as its factorization.

440246413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 440246413 is about 20982.0497807054. The cubic root of 440246413 is about 760.7324500379.

Adding to 440246413 its reverse (314642044), we get a palindrome (754888457).

The spelling of 440246413 in words is "four hundred forty million, two hundred forty-six thousand, four hundred thirteen".