1140427580 has 12 divisors (see below), whose sum is σ = 2394897960. Its totient is φ = 456171024.

The previous prime is 1140427573. The next prime is 1140427583. The reversal of 1140427580 is 857240411.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140427583) 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 3 ways as a sum of consecutive naturals, for example, 28510670 + ... + 28510709.

It is an arithmetic number, because the mean of its divisors is an integer number (199574830).

Almost surely, 2^1140427580 is an apocalyptic number.

1140427580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140427580 is an abundant number, since it is smaller than the sum of its proper divisors (1254470380).

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

1140427580 is a wasteful number, since it uses less digits than its factorization.

1140427580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57021388 (or 57021386 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 1140427580 is about 33770.2173519804. The cubic root of 1140427580 is about 1044.7745154240.

Adding to 1140427580 its reverse (857240411), we get a palindrome (1997667991).

The spelling of 1140427580 in words is "one billion, one hundred forty million, four hundred twenty-seven thousand, five hundred eighty".