1142797768 has 16 divisors (see below), whose sum is σ = 2448852480. Its totient is φ = 489770448.

The previous prime is 1142797759. The next prime is 1142797787. The reversal of 1142797768 is 8677972411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10203496 + ... + 10203607.

It is an arithmetic number, because the mean of its divisors is an integer number (153053280).

Almost surely, 2^1142797768 is an apocalyptic number.

It is an amenable number.

1142797768 is an abundant number, since it is smaller than the sum of its proper divisors (1306054712).

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

1142797768 is a wasteful number, since it uses less digits than its factorization.

1142797768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20407116 (or 20407112 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 52.

The square root of 1142797768 is about 33805.2920117546. The cubic root of 1142797768 is about 1045.4978109397.

The spelling of 1142797768 in words is "one billion, one hundred forty-two million, seven hundred ninety-seven thousand, seven hundred sixty-eight".