1142240344 has 32 divisors (see below), whose sum is σ = 2481196320. Its totient is φ = 482823936.

The previous prime is 1142240317. The next prime is 1142240369. The reversal of 1142240344 is 4430422411.

It is a super-2 number, since 2×1142240344² = 2609426006922476672, which contains 22 as substring.

It is a congruent number.

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, 135619 + ... + 143794.

It is an arithmetic number, because the mean of its divisors is an integer number (77537385).

Almost surely, 2^1142240344 is an apocalyptic number.

1142240344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1142240344 is an abundant number, since it is smaller than the sum of its proper divisors (1338955976).

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

1142240344 is a wasteful number, since it uses less digits than its factorization.

1142240344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279499 (or 279495 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1142240344 is about 33797.0463798244. The cubic root of 1142240344 is about 1045.3277953373.

Adding to 1142240344 its reverse (4430422411), we get a palindrome (5572662755).

The spelling of 1142240344 in words is "one billion, one hundred forty-two million, two hundred forty thousand, three hundred forty-four".