1142322444 has 36 divisors (see below), whose sum is σ = 2888591160. Its totient is φ = 380635200.

The previous prime is 1142322431. The next prime is 1142322481. The reversal of 1142322444 is 4442232411.

1142322444 is a `hidden beast` number, since 11 + 423 + 224 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1142322444² = 2609801132132266272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156672 + ... + 163800.

Almost surely, 2^1142322444 is an apocalyptic number.

It is an amenable number.

1142322444 is an abundant number, since it is smaller than the sum of its proper divisors (1746268716).

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

1142322444 is a wasteful number, since it uses less digits than its factorization.

1142322444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11590 (or 11585 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1142322444 is about 33798.2609611796. The cubic root of 1142322444 is about 1045.3528394991.

Adding to 1142322444 its reverse (4442232411), we get a palindrome (5584554855).

The spelling of 1142322444 in words is "one billion, one hundred forty-two million, three hundred twenty-two thousand, four hundred forty-four".