264240231 has 16 divisors (see below), whose sum is σ = 375902208. Its totient is φ = 164528000.

The previous prime is 264240209. The next prime is 264240241. The reversal of 264240231 is 132042462.

It is a cyclic number.

It is not a de Polignac number, because 264240231 - 2⁹ = 264239719 is a prime.

It is a super-2 number, since 2×264240231² = 139645799357866722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264240241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13095 + ... + 26456.

It is an arithmetic number, because the mean of its divisors is an integer number (23493888).

Almost surely, 2^264240231 is an apocalyptic number.

264240231 is a deficient number, since it is larger than the sum of its proper divisors (111661977).

264240231 is a wasteful number, since it uses less digits than its factorization.

264240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39702.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 264240231 is about 16255.4677262760. The cubic root of 264240231 is about 641.7013901338.

Adding to 264240231 its reverse (132042462), we get a palindrome (396282693).

The spelling of 264240231 in words is "two hundred sixty-four million, two hundred forty thousand, two hundred thirty-one".