1306396052 has 12 divisors (see below), whose sum is σ = 2462054196. Its totient is φ = 602952000.

The previous prime is 1306396043. The next prime is 1306396057. The reversal of 1306396052 is 2506936031.

It can be written as a sum of positive squares in 2 ways, for example, as 434138896 + 872257156 = 20836^2 + 29534^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306396057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12561449 + ... + 12561552.

It is an arithmetic number, because the mean of its divisors is an integer number (205171183).

Almost surely, 2^1306396052 is an apocalyptic number.

It is an amenable number.

1306396052 is a deficient number, since it is larger than the sum of its proper divisors (1155658144).

1306396052 is a wasteful number, since it uses less digits than its factorization.

1306396052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25123018 (or 25123016 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 1306396052 is about 36144.1012061443. The cubic root of 1306396052 is about 1093.1798544806.

The spelling of 1306396052 in words is "one billion, three hundred six million, three hundred ninety-six thousand, fifty-two".