1143426000 has 160 divisors (see below), whose sum is σ = 3714048000. Its totient is φ = 302630400.

The previous prime is 1143425993. The next prime is 1143426017. The reversal of 1143426000 is 6243411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893361 + ... + 894639.

It is an arithmetic number, because the mean of its divisors is an integer number (23212800).

Almost surely, 2^1143426000 is an apocalyptic number.

1143426000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143426000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1857024000).

1143426000 is an abundant number, since it is smaller than the sum of its proper divisors (2570622000).

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

1143426000 is a wasteful number, since it uses less digits than its factorization.

1143426000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1438 counting only the distinct ones).

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

The square root of 1143426000 is about 33814.5826530507. The cubic root of 1143426000 is about 1045.6893568920.

Adding to 1143426000 its reverse (6243411), we get a palindrome (1149669411).

The spelling of 1143426000 in words is "one billion, one hundred forty-three million, four hundred twenty-six thousand".