264218233 has 8 divisors (see below), whose sum is σ = 279902952. Its totient is φ = 248549376.

The previous prime is 264218191. The next prime is 264218257. The reversal of 264218233 is 332812462.

It can be written as a sum of positive squares in 4 ways, for example, as 10517049 + 253701184 = 3243^2 + 15928^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264218233 is a prime.

It is a super-2 number, since 2×264218233² = 139622549299284578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264218195 and 264218204.

It is not an unprimeable number, because it can be changed into a prime (264218263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59341 + ... + 63637.

It is an arithmetic number, because the mean of its divisors is an integer number (34987869).

Almost surely, 2^264218233 is an apocalyptic number.

It is an amenable number.

264218233 is a deficient number, since it is larger than the sum of its proper divisors (15684719).

264218233 is a wasteful number, since it uses less digits than its factorization.

264218233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931.

The product of its digits is 13824, while the sum is 31.

The square root of 264218233 is about 16254.7910783252. The cubic root of 264218233 is about 641.6835824254.

The spelling of 264218233 in words is "two hundred sixty-four million, two hundred eighteen thousand, two hundred thirty-three".