1321396 has 24 divisors (see below), whose sum is σ = 2467584. Its totient is φ = 617760.

The previous prime is 1321391. The next prime is 1321399. The reversal of 1321396 is 6931231.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1321396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2^1321396 is an apocalyptic number.

It is an amenable number.

1321396 is a deficient number, since it is larger than the sum of its proper divisors (1146188).

1321396 is a wasteful number, since it uses less digits than its factorization.

1321396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 349 counting only the distinct ones).

The product of its digits is 972, while the sum is 25.

The square root of 1321396 is about 1149.5198997843. The cubic root of 1321396 is about 109.7347880806.

The spelling of 1321396 in words is "one million, three hundred twenty-one thousand, three hundred ninety-six".