1142322320 has 40 divisors (see below), whose sum is σ = 2720685240. Its totient is φ = 445783040.

The previous prime is 1142322319. The next prime is 1142322371. The reversal of 1142322320 is 232232411.

It can be written as a sum of positive squares in 4 ways, for example, as 181818256 + 960504064 = 13484^2 + 30992^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1142322292 and 1142322301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170855 + ... + 177414.

It is an arithmetic number, because the mean of its divisors is an integer number (68017131).

Almost surely, 2^1142322320 is an apocalyptic number.

1142322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142322320 is an abundant number, since it is smaller than the sum of its proper divisors (1578362920).

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

1142322320 is a wasteful number, since it uses less digits than its factorization.

1142322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348323 (or 348317 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1142322320 is about 33798.2591267657. The cubic root of 1142322320 is about 1045.3528016745.

Adding to 1142322320 its reverse (232232411), we get a palindrome (1374554731).

The spelling of 1142322320 in words is "one billion, one hundred forty-two million, three hundred twenty-two thousand, three hundred twenty".