1144342120 has 64 divisors (see below), whose sum is σ = 2615639040. Its totient is φ = 450528000.

The previous prime is 1144342109. The next prime is 1144342141. The reversal of 1144342120 is 212434411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1144342091 and 1144342100.

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, 770899 + ... + 772381.

It is an arithmetic number, because the mean of its divisors is an integer number (40869360).

Almost surely, 2^1144342120 is an apocalyptic number.

1144342120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144342120 is an abundant number, since it is smaller than the sum of its proper divisors (1471296920).

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

1144342120 is a wasteful number, since it uses less digits than its factorization.

1144342120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1144342120 is about 33828.1261674365. The cubic root of 1144342120 is about 1045.9685532725.

Adding to 1144342120 its reverse (212434411), we get a palindrome (1356776531).

The spelling of 1144342120 in words is "one billion, one hundred forty-four million, three hundred forty-two thousand, one hundred twenty".