1306396 has 48 divisors (see below), whose sum is σ = 2919616. Its totient is φ = 497664.

The previous prime is 1306391. The next prime is 1306411. The reversal of 1306396 is 6936031.

1306396 = 429² + 430² + ... + 435².

1306396 is nontrivially palindromic in base 6.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306391) 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 in 15 ways as a sum of consecutive naturals, for example, 13420 + ... + 13516.

2^1306396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459808).

1306396 is an abundant number, since it is smaller than the sum of its proper divisors (1613220).

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

1306396 is a wasteful number, since it uses less digits than its factorization.

1306396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 1306396 is about 1142.9768151629. The cubic root of 1306396 is about 109.3179839976.

The spelling of 1306396 in words is "one million, three hundred six thousand, three hundred ninety-six".