264430849 has 2 divisors, whose sum is σ = 264430850. Its totient is φ = 264430848.

The previous prime is 264430819. The next prime is 264430877. The reversal of 264430849 is 948034462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187553025 + 76877824 = 13695^2 + 8768^2 .

It is a cyclic number.

It is not a de Polignac number, because 264430849 - 2⁷ = 264430721 is a prime.

It is not a weakly prime, because it can be changed into another prime (264430819) 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 as a sum of consecutive naturals, namely, 132215424 + 132215425.

It is an arithmetic number, because the mean of its divisors is an integer number (132215425).

Almost surely, 2^264430849 is an apocalyptic number.

It is an amenable number.

264430849 is a deficient number, since it is larger than the sum of its proper divisors (1).

264430849 is an equidigital number, since it uses as much as digits as its factorization.

264430849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 264430849 is about 16261.3298656660. The cubic root of 264430849 is about 641.8556568703.

The spelling of 264430849 in words is "two hundred sixty-four million, four hundred thirty thousand, eight hundred forty-nine".