264745641 has 8 divisors (see below), whose sum is σ = 373758624. Its totient is φ = 166114880.

The previous prime is 264745633. The next prime is 264745643. The reversal of 264745641 is 146547462.

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 264745641 - 2³ = 264745633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264745641.

It is not an unprimeable number, because it can be changed into a prime (264745643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2595495 + ... + 2595596.

It is an arithmetic number, because the mean of its divisors is an integer number (46719828).

Almost surely, 2^264745641 is an apocalyptic number.

It is an amenable number.

264745641 is a deficient number, since it is larger than the sum of its proper divisors (109012983).

264745641 is a wasteful number, since it uses less digits than its factorization.

264745641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191111.

The product of its digits is 161280, while the sum is 39.

The square root of 264745641 is about 16271.0061459026. The cubic root of 264745641 is about 642.1102551297.

The spelling of 264745641 in words is "two hundred sixty-four million, seven hundred forty-five thousand, six hundred forty-one".