1144140242 has 32 divisors (see below), whose sum is σ = 1992316800. Its totient is φ = 482640768.

The previous prime is 1144140199. The next prime is 1144140247. The reversal of 1144140242 is 2420414411.

It is not an unprimeable number, because it can be changed into a prime (1144140247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723809 + ... + 725387.

It is an arithmetic number, because the mean of its divisors is an integer number (62259900).

Almost surely, 2^1144140242 is an apocalyptic number.

1144140242 is a deficient number, since it is larger than the sum of its proper divisors (848176558).

1144140242 is a wasteful number, since it uses less digits than its factorization.

1144140242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1144140242 is about 33825.1421578683. The cubic root of 1144140242 is about 1045.9070418142.

Adding to 1144140242 its reverse (2420414411), we get a palindrome (3564554653).

The spelling of 1144140242 in words is "one billion, one hundred forty-four million, one hundred forty thousand, two hundred forty-two".