1143040040 has 32 divisors (see below), whose sum is σ = 2615436000. Its totient is φ = 449465664.

The previous prime is 1143040037. The next prime is 1143040043. The reversal of 1143040040 is 400403411.

It is an interprime number because it is at equal distance from previous prime (1143040037) and next prime (1143040043).

It is not an unprimeable number, because it can be changed into a prime (1143040043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239810 + ... + 244529.

It is an arithmetic number, because the mean of its divisors is an integer number (81732375).

Almost surely, 2^1143040040 is an apocalyptic number.

1143040040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143040040 is an abundant number, since it is smaller than the sum of its proper divisors (1472395960).

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

1143040040 is a wasteful number, since it uses less digits than its factorization.

1143040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484409 (or 484405 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1143040040 is about 33808.8751661454. The cubic root of 1143040040 is about 1045.5716872211.

Adding to 1143040040 its reverse (400403411), we get a palindrome (1543443451).

The spelling of 1143040040 in words is "one billion, one hundred forty-three million, forty thousand, forty".