1140042552 has 64 divisors (see below), whose sum is σ = 3141331200. Its totient is φ = 341898240.

The previous prime is 1140042539. The next prime is 1140042583. The reversal of 1140042552 is 2552400411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3349 + ... + 47867.

It is an arithmetic number, because the mean of its divisors is an integer number (49083300).

Almost surely, 2^1140042552 is an apocalyptic number.

1140042552 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 1140042552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1570665600).

1140042552 is an abundant number, since it is smaller than the sum of its proper divisors (2001288648).

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

1140042552 is a wasteful number, since it uses less digits than its factorization.

1140042552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44636 (or 44632 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1140042552 is about 33764.5161671243. The cubic root of 1140042552 is about 1044.6569242303.

Adding to 1140042552 its reverse (2552400411), we get a palindrome (3692442963).

The spelling of 1140042552 in words is "one billion, one hundred forty million, forty-two thousand, five hundred fifty-two".