1306631346 has 32 divisors (see below), whose sum is σ = 2701166400. Its totient is φ = 421135680.

The previous prime is 1306631341. The next prime is 1306631351. The reversal of 1306631346 is 6431366031.

1306631346 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1306631341) and next prime (1306631351).

It is not an unprimeable number, because it can be changed into a prime (1306631341) 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, 8661 + ... + 51848.

It is an arithmetic number, because the mean of its divisors is an integer number (84411450).

Almost surely, 2^1306631346 is an apocalyptic number.

1306631346 is an abundant number, since it is smaller than the sum of its proper divisors (1394535054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1306631346 is a wasteful number, since it uses less digits than its factorization.

1306631346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60634.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 1306631346 is about 36147.3560028946. The cubic root of 1306631346 is about 1093.2454811384.

Adding to 1306631346 its reverse (6431366031), we get a palindrome (7737997377).

The spelling of 1306631346 in words is "one billion, three hundred six million, six hundred thirty-one thousand, three hundred forty-six".