1142227332 has 144 divisors (see below), whose sum is σ = 3183165440. Its totient is φ = 357128352.

The previous prime is 1142227319. The next prime is 1142227363. The reversal of 1142227332 is 2337222411.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1142227296 and 1142227305.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2345193 + ... + 2345679.

Almost surely, 2^1142227332 is an apocalyptic number.

1142227332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142227332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1591582720).

1142227332 is an abundant number, since it is smaller than the sum of its proper divisors (2040938108).

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

1142227332 is a wasteful number, since it uses less digits than its factorization.

1142227332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 638 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1142227332 is about 33796.8538772472. The cubic root of 1142227332 is about 1045.3238259868.

Adding to 1142227332 its reverse (2337222411), we get a palindrome (3479449743).

The spelling of 1142227332 in words is "one billion, one hundred forty-two million, two hundred twenty-seven thousand, three hundred thirty-two".