1141132440 has 64 divisors (see below), whose sum is σ = 3912456960. Its totient is φ = 260830080.

The previous prime is 1141132417. The next prime is 1141132471. The reversal of 1141132440 is 442311411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678406 + ... + 680085.

It is an arithmetic number, because the mean of its divisors is an integer number (61132140).

Almost surely, 2^1141132440 is an apocalyptic number.

1141132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141132440 is an abundant number, since it is smaller than the sum of its proper divisors (2771324520).

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

1141132440 is a wasteful number, since it uses less digits than its factorization.

1141132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358512 (or 1358508 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1141132440 is about 33780.6518587194. The cubic root of 1141132440 is about 1044.9897177777.

Adding to 1141132440 its reverse (442311411), we get a palindrome (1583443851).

The spelling of 1141132440 in words is "one billion, one hundred forty-one million, one hundred thirty-two thousand, four hundred forty".