264405245 has 16 divisors (see below), whose sum is σ = 342604080. Its totient is φ = 194732544.

The previous prime is 264405191. The next prime is 264405247. The reversal of 264405245 is 542504462.

It can be written as a sum of positive squares in 8 ways, for example, as 7540516 + 256864729 = 2746^2 + 16027^2 .

It is a cyclic number.

It is not a de Polignac number, because 264405245 - 2⁸ = 264404989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264405247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20057 + ... + 30513.

It is an arithmetic number, because the mean of its divisors is an integer number (21412755).

Almost surely, 2^264405245 is an apocalyptic number.

It is an amenable number.

264405245 is a deficient number, since it is larger than the sum of its proper divisors (78198835).

264405245 is a wasteful number, since it uses less digits than its factorization.

264405245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10864.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 264405245 is about 16260.5425801232. The cubic root of 264405245 is about 641.8349399195.

The spelling of 264405245 in words is "two hundred sixty-four million, four hundred five thousand, two hundred forty-five".