1143340992 has 84 divisors (see below), whose sum is σ = 3314151360. Its totient is φ = 376814592.

The previous prime is 1143340969. The next prime is 1143340993. The reversal of 1143340992 is 2990433411.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143340993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40113 + ... + 62415.

Almost surely, 2^1143340992 is an apocalyptic number.

1143340992 is a gapful number since it is divisible by the number (12) 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 1143340992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657075680).

1143340992 is an abundant number, since it is smaller than the sum of its proper divisors (2170810368).

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

1143340992 is a wasteful number, since it uses less digits than its factorization.

1143340992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22410 (or 22397 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1143340992 is about 33813.3256572021. The cubic root of 1143340992 is about 1045.6634423265.

It can be divided in two parts, 11433 and 40992, that added together give a palindrome (52425).

The spelling of 1143340992 in words is "one billion, one hundred forty-three million, three hundred forty thousand, nine hundred ninety-two".