464440013 has 2 divisors, whose sum is σ = 464440014. Its totient is φ = 464440012.

The previous prime is 464439919. The next prime is 464440019. The reversal of 464440013 is 310044464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344362249 + 120077764 = 18557^2 + 10958^2 .

It is a cyclic number.

It is not a de Polignac number, because 464440013 - 2²⁴ = 447662797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464440019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232220006 + 232220007.

It is an arithmetic number, because the mean of its divisors is an integer number (232220007).

Almost surely, 2^464440013 is an apocalyptic number.

It is an amenable number.

464440013 is a deficient number, since it is larger than the sum of its proper divisors (1).

464440013 is an equidigital number, since it uses as much as digits as its factorization.

464440013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 464440013 is about 21550.8703536539. The cubic root of 464440013 is about 774.4199686330.

Adding to 464440013 its reverse (310044464), we get a palindrome (774484477).

The spelling of 464440013 in words is "four hundred sixty-four million, four hundred forty thousand, thirteen".