1331372 has 24 divisors (see below), whose sum is σ = 2820384. Its totient is φ = 536832.

The previous prime is 1331347. The next prime is 1331377. The reversal of 1331372 is 2731331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1331377) 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, 923 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (117516).

2^1331372 is an apocalyptic number.

It is an amenable number.

1331372 is an abundant number, since it is smaller than the sum of its proper divisors (1489012).

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

1331372 is a wasteful number, since it uses less digits than its factorization.

1331372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825 (or 2823 counting only the distinct ones).

The product of its digits is 378, while the sum is 20.

The square root of 1331372 is about 1153.8509435798. The cubic root of 1331372 is about 110.0102469793.

The spelling of 1331372 in words is "one million, three hundred thirty-one thousand, three hundred seventy-two".