1142197968 has 20 divisors (see below), whose sum is σ = 2950678208. Its totient is φ = 380732640.

The previous prime is 1142197961. The next prime is 1142197997. The reversal of 1142197968 is 8697912411.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 23795791 = 1142197968 / (1 + 1 + 4 + 2 + 1 + 9 + 7 + 9 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142197961) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11897848 + ... + 11897943.

Almost surely, 2^1142197968 is an apocalyptic number.

It is an amenable number.

1142197968 is an abundant number, since it is smaller than the sum of its proper divisors (1808480240).

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

1142197968 is a wasteful number, since it uses less digits than its factorization.

1142197968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23795802 (or 23795796 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 1142197968 is about 33796.4194553210. The cubic root of 1142197968 is about 1045.3148682977.

The spelling of 1142197968 in words is "one billion, one hundred forty-two million, one hundred ninety-seven thousand, nine hundred sixty-eight".