1140142444 has 24 divisors (see below), whose sum is σ = 2287070240. Its totient is φ = 487178496.

The previous prime is 1140142429. The next prime is 1140142447. The reversal of 1140142444 is 4442410411.

It is a super-2 number, since 2×1140142444² = 2599849585220586272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1140142447) 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, 50979 + ... + 69850.

Almost surely, 2^1140142444 is an apocalyptic number.

1140142444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1140142444 is an abundant number, since it is smaller than the sum of its proper divisors (1146927796).

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

1140142444 is a wasteful number, since it uses less digits than its factorization.

1140142444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121177 (or 121175 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 1140142444 is about 33765.9953799677. The cubic root of 1140142444 is about 1044.6874347353.

Adding to 1140142444 its reverse (4442410411), we get a palindrome (5582552855).

The spelling of 1140142444 in words is "one billion, one hundred forty million, one hundred forty-two thousand, four hundred forty-four".