264540331 has 8 divisors (see below), whose sum is σ = 294035184. Its totient is φ = 235953120.

The previous prime is 264540301. The next prime is 264540337. The reversal of 264540331 is 133045462.

264540331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 264540331 - 2⁷ = 264540203 is a prime.

It is a super-2 number, since 2×264540331² = 139963173451179122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264540331.

It is not an unprimeable number, because it can be changed into a prime (264540337) 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, 226296 + ... + 227461.

It is an arithmetic number, because the mean of its divisors is an integer number (36754398).

Almost surely, 2^264540331 is an apocalyptic number.

264540331 is a deficient number, since it is larger than the sum of its proper divisors (29494853).

264540331 is a wasteful number, since it uses less digits than its factorization.

264540331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453821.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 264540331 is about 16264.6958471408. The cubic root of 264540331 is about 641.9442269008.

Adding to 264540331 its reverse (133045462), we get a palindrome (397585793).

The spelling of 264540331 in words is "two hundred sixty-four million, five hundred forty thousand, three hundred thirty-one".