264367641 has 4 divisors (see below), whose sum is σ = 352490192. Its totient is φ = 176245092.

The previous prime is 264367633. The next prime is 264367661. The reversal of 264367641 is 146763462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 264367641 - 2³ = 264367633 is a prime.

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 264367641.

It is not an unprimeable number, because it can be changed into a prime (264367661) 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, 44061271 + ... + 44061276.

It is an arithmetic number, because the mean of its divisors is an integer number (88122548).

Almost surely, 2^264367641 is an apocalyptic number.

It is an amenable number.

264367641 is a deficient number, since it is larger than the sum of its proper divisors (88122551).

264367641 is an equidigital number, since it uses as much as digits as its factorization.

264367641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88122550.

The product of its digits is 145152, while the sum is 39.

The square root of 264367641 is about 16259.3862430290. The cubic root of 264367641 is about 641.8045109904.

The spelling of 264367641 in words is "two hundred sixty-four million, three hundred sixty-seven thousand, six hundred forty-one".