1143742242 has 16 divisors (see below), whose sum is σ = 2296600992. Its totient is φ = 379728000.

The previous prime is 1143742231. The next prime is 1143742277. The reversal of 1143742242 is 2422473411.

It is a super-2 number, since 2×1143742242² = 2616292632270373128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378223 + ... + 381234.

It is an arithmetic number, because the mean of its divisors is an integer number (143537562).

Almost surely, 2^1143742242 is an apocalyptic number.

1143742242 is an abundant number, since it is smaller than the sum of its proper divisors (1152858750).

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

1143742242 is a wasteful number, since it uses less digits than its factorization.

1143742242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759713.

The product of its digits is 10752, while the sum is 30.

The square root of 1143742242 is about 33819.2584484048. The cubic root of 1143742242 is about 1045.7857515316.

The spelling of 1143742242 in words is "one billion, one hundred forty-three million, seven hundred forty-two thousand, two hundred forty-two".