1142020242 has 64 divisors (see below), whose sum is σ = 2888939520. Its totient is φ = 331016400.

The previous prime is 1142020211. The next prime is 1142020259. The reversal of 1142020242 is 2420202411.

1142020242 is a `hidden beast` number, since 1 + 1 + 420 + 2 + 0 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 31 ways as a sum of consecutive naturals, for example, 28134 + ... + 55457.

It is an arithmetic number, because the mean of its divisors is an integer number (45139680).

Almost surely, 2^1142020242 is an apocalyptic number.

1142020242 is an abundant number, since it is smaller than the sum of its proper divisors (1746919278).

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

1142020242 is a wasteful number, since it uses less digits than its factorization.

1142020242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83636 (or 83630 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1142020242 is about 33793.7899916538. The cubic root of 1142020242 is about 1045.2606484888.

Adding to 1142020242 its reverse (2420202411), we get a palindrome (3562222653).

The spelling of 1142020242 in words is "one billion, one hundred forty-two million, twenty thousand, two hundred forty-two".