1142444120 has 32 divisors (see below), whose sum is σ = 2574281520. Its totient is φ = 456305280.

The previous prime is 1142444117. The next prime is 1142444123. The reversal of 1142444120 is 214442411.

It is an interprime number because it is at equal distance from previous prime (1142444117) and next prime (1142444123).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142444123) 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, 6974 + ... + 48306.

Almost surely, 2^1142444120 is an apocalyptic number.

1142444120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142444120 is an abundant number, since it is smaller than the sum of its proper divisors (1431837400).

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

1142444120 is a wasteful number, since it uses less digits than its factorization.

1142444120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42035 (or 42031 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1142444120 is about 33800.0609466906. The cubic root of 1142444120 is about 1045.3899538991.

Adding to 1142444120 its reverse (214442411), we get a palindrome (1356886531).

The spelling of 1142444120 in words is "one billion, one hundred forty-two million, four hundred forty-four thousand, one hundred twenty".