264438413 has 4 divisors (see below), whose sum is σ = 268920480. Its totient is φ = 259956348.

The previous prime is 264438407. The next prime is 264438467. The reversal of 264438413 is 314834462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314834462 = 2 ⋅157417231.

It is a cyclic number.

It is not a de Polignac number, because 264438413 - 2⁸ = 264438157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264434413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240945 + ... + 2241062.

It is an arithmetic number, because the mean of its divisors is an integer number (67230120).

Almost surely, 2^264438413 is an apocalyptic number.

It is an amenable number.

264438413 is a deficient number, since it is larger than the sum of its proper divisors (4482067).

264438413 is an equidigital number, since it uses as much as digits as its factorization.

264438413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482066.

The product of its digits is 55296, while the sum is 35.

The square root of 264438413 is about 16261.5624403069. The cubic root of 264438413 is about 641.8617768697.

The spelling of 264438413 in words is "two hundred sixty-four million, four hundred thirty-eight thousand, four hundred thirteen".