1140550530 has 128 divisors (see below), whose sum is σ = 3231982080. Its totient is φ = 252149760.

The previous prime is 1140550517. The next prime is 1140550531. The reversal of 1140550530 is 350550411.

It is a super-2 number, since 2×1140550530² = 2601711022966561800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1140550530.

It is not an unprimeable number, because it can be changed into a prime (1140550531) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1779010 + ... + 1779650.

It is an arithmetic number, because the mean of its divisors is an integer number (25249860).

Almost surely, 2^1140550530 is an apocalyptic number.

1140550530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140550530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615991040).

1140550530 is an abundant number, since it is smaller than the sum of its proper divisors (2091431550).

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

1140550530 is a wasteful number, since it uses less digits than its factorization.

1140550530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1140550530 is about 33772.0376939266. The cubic root of 1140550530 is about 1044.8120599418.

The spelling of 1140550530 in words is "one billion, one hundred forty million, five hundred fifty thousand, five hundred thirty".