1142441144 has 16 divisors (see below), whose sum is σ = 2306852520. Its totient is φ = 527280480.

The previous prime is 1142441141. The next prime is 1142441147. The reversal of 1142441144 is 4411442411.

It is an interprime number because it is at equal distance from previous prime (1142441141) and next prime (1142441147).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142441141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5492402 + ... + 5492609.

Almost surely, 2^1142441144 is an apocalyptic number.

It is an amenable number.

1142441144 is an abundant number, since it is smaller than the sum of its proper divisors (1164411376).

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

1142441144 is a wasteful number, since it uses less digits than its factorization.

1142441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985030 (or 10985026 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 1142441144 is about 33800.0169230727. The cubic root of 1142441144 is about 1045.3890461718.

Adding to 1142441144 its reverse (4411442411), we get a palindrome (5553883555).

The spelling of 1142441144 in words is "one billion, one hundred forty-two million, four hundred forty-one thousand, one hundred forty-four".