1331396 has 12 divisors (see below), whose sum is σ = 2541840. Its totient is φ = 605160.

The previous prime is 1331383. The next prime is 1331399. The reversal of 1331396 is 6931331.

It is not an unprimeable number, because it can be changed into a prime (1331399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15086 + ... + 15173.

It is an arithmetic number, because the mean of its divisors is an integer number (211820).

2^1331396 is an apocalyptic number.

It is an amenable number.

1331396 is a deficient number, since it is larger than the sum of its proper divisors (1210444).

1331396 is a wasteful number, since it uses less digits than its factorization.

1331396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30274 (or 30272 counting only the distinct ones).

The product of its digits is 1458, while the sum is 26.

The square root of 1331396 is about 1153.8613434898. The cubic root of 1331396 is about 110.0109080092.

It can be divided in two parts, 1331 and 396, that multiplied together give a square (527076 = 726²).

The spelling of 1331396 in words is "one million, three hundred thirty-one thousand, three hundred ninety-six".