1142321224 has 32 divisors (see below), whose sum is σ = 2343362400. Its totient is φ = 517726720.

The previous prime is 1142321203. The next prime is 1142321237. The reversal of 1142321224 is 4221232411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1142321195 and 1142321204.

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, 11832 + ... + 49240.

It is an arithmetic number, because the mean of its divisors is an integer number (73230075).

Almost surely, 2^1142321224 is an apocalyptic number.

It is an amenable number.

1142321224 is an abundant number, since it is smaller than the sum of its proper divisors (1201041176).

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

1142321224 is a wasteful number, since it uses less digits than its factorization.

1142321224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37773 (or 37769 counting only the distinct ones).

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

The square root of 1142321224 is about 33798.2429129089. The cubic root of 1142321224 is about 1045.3524673535.

Adding to 1142321224 its reverse (4221232411), we get a palindrome (5363553635).

The spelling of 1142321224 in words is "one billion, one hundred forty-two million, three hundred twenty-one thousand, two hundred twenty-four".