264223469 has 4 divisors (see below), whose sum is σ = 279766044. Its totient is φ = 248680896.

The previous prime is 264223459. The next prime is 264223507. The reversal of 264223469 is 964322462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72760900 + 191462569 = 8530^2 + 13837^2 .

It is a de Polignac number, because none of the positive numbers 2^k-264223469 is a prime.

It is a super-2 number, since 2×264223469² = 139628083140787922, 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 (264223429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7771262 + ... + 7771295.

It is an arithmetic number, because the mean of its divisors is an integer number (69941511).

Almost surely, 2^264223469 is an apocalyptic number.

It is an amenable number.

264223469 is a deficient number, since it is larger than the sum of its proper divisors (15542575).

264223469 is a wasteful number, since it uses less digits than its factorization.

264223469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15542574.

The product of its digits is 124416, while the sum is 38.

The square root of 264223469 is about 16254.9521377333. The cubic root of 264223469 is about 641.6878211350.

The spelling of 264223469 in words is "two hundred sixty-four million, two hundred twenty-three thousand, four hundred sixty-nine".