264421319 has 4 divisors (see below), whose sum is σ = 270570696. Its totient is φ = 258271944.

The previous prime is 264421307. The next prime is 264421327. The reversal of 264421319 is 913124462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913124462 = 2 ⋅456562231.

It is a cyclic number.

It is not a de Polignac number, because 264421319 - 2⁸ = 264421063 is a prime.

It is a super-2 number, since 2×264421319² = 139837267883399522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264423319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3074624 + ... + 3074709.

It is an arithmetic number, because the mean of its divisors is an integer number (67642674).

Almost surely, 2^264421319 is an apocalyptic number.

264421319 is a deficient number, since it is larger than the sum of its proper divisors (6149377).

264421319 is an equidigital number, since it uses as much as digits as its factorization.

264421319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149376.

The product of its digits is 10368, while the sum is 32.

The square root of 264421319 is about 16261.0368365612. The cubic root of 264421319 is about 641.8479460228.

The spelling of 264421319 in words is "two hundred sixty-four million, four hundred twenty-one thousand, three hundred nineteen".