1142444 has 6 divisors (see below), whose sum is σ = 1999284. Its totient is φ = 571220.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142444 is 4442411.

It is a happy number.

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

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 as a sum of consecutive naturals, namely, 142802 + ... + 142809.

It is an arithmetic number, because the mean of its divisors is an integer number (333214).

2^1142444 is an apocalyptic number.

It is an amenable number.

1142444 is a deficient number, since it is larger than the sum of its proper divisors (856840).

1142444 is a wasteful number, since it uses less digits than its factorization.

1142444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285615 (or 285613 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 1142444 is about 1068.8517203055. The cubic root of 1142444 is about 104.5389917297.

Adding to 1142444 its reverse (4442411), we get a palindrome (5584855).

It can be divided in two parts, 114244 and 4, that multiplied together give a 4-th power (456976 = 26⁴).

The spelling of 1142444 in words is "one million, one hundred forty-two thousand, four hundred forty-four".