13331442 has 8 divisors (see below), whose sum is σ = 26662896. Its totient is φ = 4443812.

The previous prime is 13331441. The next prime is 13331447. The reversal of 13331442 is 24413331.

It is a sphenic number, since it is the product of 3 distinct primes.

13331442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13331441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110948 + ... + 1110959.

It is an arithmetic number, because the mean of its divisors is an integer number (3332862).

Almost surely, 2^13331442 is an apocalyptic number.

13331442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13331442 is a wasteful number, since it uses less digits than its factorization.

13331442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221912.

The product of its digits is 864, while the sum is 21.

The square root of 13331442 is about 3651.2247260337. The cubic root of 13331442 is about 237.1150076510.

Adding to 13331442 its reverse (24413331), we get a palindrome (37744773).

It can be divided in two parts, 1333 and 1442, that added together give a triangular number (2775 = T₇₄).

The spelling of 13331442 in words is "thirteen million, three hundred thirty-one thousand, four hundred forty-two".