1140200442 has 32 divisors (see below), whose sum is σ = 2548445760. Its totient is φ = 377866800.

The previous prime is 1140200423. The next prime is 1140200461. The reversal of 1140200442 is 2440020411.

It is an interprime number because it is at equal distance from previous prime (1140200423) and next prime (1140200461).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 51684 + ... + 70367.

It is an arithmetic number, because the mean of its divisors is an integer number (79638930).

Almost surely, 2^1140200442 is an apocalyptic number.

1140200442 is an abundant number, since it is smaller than the sum of its proper divisors (1408245318).

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

1140200442 is a wasteful number, since it uses less digits than its factorization.

1140200442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122235 (or 122229 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1140200442 is about 33766.8541916478. The cubic root of 1140200442 is about 1044.7051485320.

Adding to 1140200442 its reverse (2440020411), we get a palindrome (3580220853).

The spelling of 1140200442 in words is "one billion, one hundred forty million, two hundred thousand, four hundred forty-two".