1143422440344 has 80 divisors (see below), whose sum is σ = 3203804023200. Its totient is φ = 381002470848.

The previous prime is 1143422440343. The next prime is 1143422440357. The reversal of 1143422440344 is 4430442243411.

1143422440344 is a `hidden beast` number, since 1 + 143 + 42 + 2 + 440 + 34 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1143422440299 and 1143422440308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143422440343) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1474162 + ... + 2111870.

It is an arithmetic number, because the mean of its divisors is an integer number (40047550290).

Almost surely, 2^{1143422440344} is an apocalyptic number.

It is an amenable number.

1143422440344 is an abundant number, since it is smaller than the sum of its proper divisors (2060381582856).

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

1143422440344 is a wasteful number, since it uses less digits than its factorization.

1143422440344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640494 (or 640481 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 1143422440344 its reverse (4430442243411), we get a palindrome (5573864683755).

The spelling of 1143422440344 in words is "one trillion, one hundred forty-three billion, four hundred twenty-two million, four hundred forty thousand, three hundred forty-four".