264440329 has 2 divisors, whose sum is σ = 264440330. Its totient is φ = 264440328.

The previous prime is 264440327. The next prime is 264440339. The reversal of 264440329 is 923044462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260887104 + 3553225 = 16152^2 + 1885^2 .

It is a cyclic number.

It is not a de Polignac number, because 264440329 - 2¹ = 264440327 is a prime.

Together with 264440327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 264440294 and 264440303.

It is not a weakly prime, because it can be changed into another prime (264440327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132220164 + 132220165.

It is an arithmetic number, because the mean of its divisors is an integer number (132220165).

Almost surely, 2^264440329 is an apocalyptic number.

It is an amenable number.

264440329 is a deficient number, since it is larger than the sum of its proper divisors (1).

264440329 is an equidigital number, since it uses as much as digits as its factorization.

264440329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 264440329 is about 16261.6213521285. The cubic root of 264440329 is about 641.8633270784.

The spelling of 264440329 in words is "two hundred sixty-four million, four hundred forty thousand, three hundred twenty-nine".