1313442 has 32 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 403920.

The previous prime is 1313423. The next prime is 1313443. The reversal of 1313442 is 2443131.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1313443) 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 15 ways as a sum of consecutive naturals, for example, 234 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^1313442 is an apocalyptic number.

1313442 is an abundant number, since it is smaller than the sum of its proper divisors (1831518).

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

1313442 is a wasteful number, since it uses less digits than its factorization.

1313442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895 (or 1889 counting only the distinct ones).

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

The square root of 1313442 is about 1146.0549725035. The cubic root of 1313442 is about 109.5141659286.

Adding to 1313442 its reverse (2443131), we get a palindrome (3756573).

The spelling of 1313442 in words is "one million, three hundred thirteen thousand, four hundred forty-two".