1140018558 has 32 divisors (see below), whose sum is σ = 2661202944. Its totient is φ = 318788832.

The previous prime is 1140018557. The next prime is 1140018559. The reversal of 1140018558 is 8558100411.

It is an interprime number because it is at equal distance from previous prime (1140018557) and next prime (1140018559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140018557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286785 + ... + 290732.

It is an arithmetic number, because the mean of its divisors is an integer number (83162592).

Almost surely, 2^1140018558 is an apocalyptic number.

1140018558 is an abundant number, since it is smaller than the sum of its proper divisors (1521184386).

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

1140018558 is a wasteful number, since it uses less digits than its factorization.

1140018558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577576.

The product of its (nonzero) digits is 6400, while the sum is 33.

The square root of 1140018558 is about 33764.1608514117. The cubic root of 1140018558 is about 1044.6495953594.

Adding to 1140018558 its reverse (8558100411), we get a palindrome (9698118969).

The spelling of 1140018558 in words is "one billion, one hundred forty million, eighteen thousand, five hundred fifty-eight".