1143342 has 32 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 368280.

The previous prime is 1143341. The next prime is 1143347. The reversal of 1143342 is 2433411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1333 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2^1143342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313280).

1143342 is an abundant number, since it is smaller than the sum of its proper divisors (1483218).

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

1143342 is a wasteful number, since it uses less digits than its factorization.

1143342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 719 counting only the distinct ones).

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

The square root of 1143342 is about 1069.2717147666. The cubic root of 1143342 is about 104.5663749621.

Adding to 1143342 its reverse (2433411), we get a palindrome (3576753).

It can be divided in two parts, 1143 and 342, that added together give a triangular number (1485 = T₅₄).

The spelling of 1143342 in words is "one million, one hundred forty-three thousand, three hundred forty-two".