1141355440 has 20 divisors (see below), whose sum is σ = 2653651584. Its totient is φ = 456542144.

The previous prime is 1141355419. The next prime is 1141355443. The reversal of 1141355440 is 445531411.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1141355399 and 1141355408.

It is not an unprimeable number, because it can be changed into a prime (1141355443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7133392 + ... + 7133551.

Almost surely, 2^1141355440 is an apocalyptic number.

1141355440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141355440 is an abundant number, since it is smaller than the sum of its proper divisors (1512296144).

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

1141355440 is a wasteful number, since it uses less digits than its factorization.

1141355440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266956 (or 14266950 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1141355440 is about 33783.9524034711. The cubic root of 1141355440 is about 1045.0577839433.

Adding to 1141355440 its reverse (445531411), we get a palindrome (1586886851).

The spelling of 1141355440 in words is "one billion, one hundred forty-one million, three hundred fifty-five thousand, four hundred forty".