264440273 has 2 divisors, whose sum is σ = 264440274. Its totient is φ = 264440272.

The previous prime is 264440263. The next prime is 264440303. The reversal of 264440273 is 372044462.

264440273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259113409 + 5326864 = 16097^2 + 2308^2 .

It is a cyclic number.

It is not a de Polignac number, because 264440273 - 2⁸ = 264440017 is a prime.

It is not a weakly prime, because it can be changed into another prime (264440263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132220136 + 132220137.

It is an arithmetic number, because the mean of its divisors is an integer number (132220137).

Almost surely, 2^264440273 is an apocalyptic number.

It is an amenable number.

264440273 is a deficient number, since it is larger than the sum of its proper divisors (1).

264440273 is an equidigital number, since it uses as much as digits as its factorization.

264440273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 264440273 is about 16261.6196302828. The cubic root of 264440273 is about 641.8632817697.

The spelling of 264440273 in words is "two hundred sixty-four million, four hundred forty thousand, two hundred seventy-three".