1143426 has 16 divisors (see below), whose sum is σ = 2304000. Its totient is φ = 378288.

The previous prime is 1143407. The next prime is 1143433. The reversal of 1143426 is 6243411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (144000).

2^1143426 is an apocalyptic number.

1143426 is an abundant number, since it is smaller than the sum of its proper divisors (1160574).

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

1143426 is a wasteful number, since it uses less digits than its factorization.

1143426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433.

The product of its digits is 576, while the sum is 21.

The square root of 1143426 is about 1069.3109931166. The cubic root of 1143426 is about 104.5689356892.

Adding to 1143426 its reverse (6243411), we get a palindrome (7386837).

The spelling of 1143426 in words is "one million, one hundred forty-three thousand, four hundred twenty-six".