1331442 has 24 divisors (see below), whose sum is σ = 3297216. Its totient is φ = 380376.

The previous prime is 1331437. The next prime is 1331443. The reversal of 1331442 is 2441331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1331443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5158 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (137384).

2^1331442 is an apocalyptic number.

1331442 is an abundant number, since it is smaller than the sum of its proper divisors (1965774).

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

1331442 is a wasteful number, since it uses less digits than its factorization.

1331442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10582 (or 10579 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1331442 is about 1153.8812763885. The cubic root of 1331442 is about 110.0121749609.

Adding to 1331442 its reverse (2441331), we get a palindrome (3772773).

The spelling of 1331442 in words is "one million, three hundred thirty-one thousand, four hundred forty-two".