264309401 has 4 divisors (see below), whose sum is σ = 268642404. Its totient is φ = 259976400.

The previous prime is 264309377. The next prime is 264309403. The reversal of 264309401 is 104903462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30250000 + 234059401 = 5500^2 + 15299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264309401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (264309403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166410 + ... + 2166531.

It is an arithmetic number, because the mean of its divisors is an integer number (67160601).

Almost surely, 2^264309401 is an apocalyptic number.

It is an amenable number.

264309401 is a deficient number, since it is larger than the sum of its proper divisors (4333003).

264309401 is an equidigital number, since it uses as much as digits as its factorization.

264309401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333002.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 264309401 is about 16257.5951788695. The cubic root of 264309401 is about 641.7573778393.

The spelling of 264309401 in words is "two hundred sixty-four million, three hundred nine thousand, four hundred one".