1140220144 has 40 divisors (see below), whose sum is σ = 2611841760. Its totient is φ = 471813888.

The previous prime is 1140220117. The next prime is 1140220171. The reversal of 1140220144 is 4410220411.

It is an interprime number because it is at equal distance from previous prime (1140220117) and next prime (1140220171).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172279 + ... + 178774.

It is an arithmetic number, because the mean of its divisors is an integer number (65296044).

Almost surely, 2^1140220144 is an apocalyptic number.

1140220144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1140220144 is an abundant number, since it is smaller than the sum of its proper divisors (1471621616).

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

1140220144 is a wasteful number, since it uses less digits than its factorization.

1140220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351097 (or 351091 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1140220144 is about 33767.1459261810. The cubic root of 1140220144 is about 1044.7111657963.

Adding to 1140220144 its reverse (4410220411), we get a palindrome (5550440555).

The spelling of 1140220144 in words is "one billion, one hundred forty million, two hundred twenty thousand, one hundred forty-four".