1140015388 has 6 divisors (see below), whose sum is σ = 1995026936. Its totient is φ = 570007692.

The previous prime is 1140015367. The next prime is 1140015407. The reversal of 1140015388 is 8835100411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142501920 + ... + 142501927.

Almost surely, 2^1140015388 is an apocalyptic number.

It is an amenable number.

1140015388 is a deficient number, since it is larger than the sum of its proper divisors (855011548).

1140015388 is a wasteful number, since it uses less digits than its factorization.

1140015388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285003851 (or 285003849 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1140015388 is about 33764.1139081126. The cubic root of 1140015388 is about 1044.6486270879.

Adding to 1140015388 its reverse (8835100411), we get a palindrome (9975115799).

The spelling of 1140015388 in words is "one billion, one hundred forty million, fifteen thousand, three hundred eighty-eight".