1142033140 has 48 divisors (see below), whose sum is σ = 2552256000. Its totient is φ = 427756032.

The previous prime is 1142033131. The next prime is 1142033177. The reversal of 1142033140 is 413302411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59221 + ... + 76099.

It is an arithmetic number, because the mean of its divisors is an integer number (53172000).

Almost surely, 2^1142033140 is an apocalyptic number.

1142033140 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 1142033140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276128000).

1142033140 is an abundant number, since it is smaller than the sum of its proper divisors (1410222860).

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

1142033140 is a wasteful number, since it uses less digits than its factorization.

1142033140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17104 (or 17102 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1142033140 is about 33793.9808249931. The cubic root of 1142033140 is about 1045.2645835390.

Adding to 1142033140 its reverse (413302411), we get a palindrome (1555335551).

The spelling of 1142033140 in words is "one billion, one hundred forty-two million, thirty-three thousand, one hundred forty".