1306699396 has 18 divisors (see below), whose sum is σ = 2293020170. Its totient is φ = 651555072.

The previous prime is 1306699393. The next prime is 1306699417. The reversal of 1306699396 is 6939966031.

It can be written as a sum of positive squares in 3 ways, for example, as 7096896 + 1299602500 = 2664^2 + 36050^2 .

It is not an unprimeable number, because it can be changed into a prime (1306699393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1294540 + ... + 1295548.

Almost surely, 2^1306699396 is an apocalyptic number.

It is an amenable number.

1306699396 is a deficient number, since it is larger than the sum of its proper divisors (986320774).

1306699396 is an equidigital number, since it uses as much as digits as its factorization.

1306699396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 52.

The square root of 1306699396 is about 36148.2972766353. The cubic root of 1306699396 is about 1093.2644597288.

The spelling of 1306699396 in words is "one billion, three hundred six million, six hundred ninety-nine thousand, three hundred ninety-six".