1142688774 has 8 divisors (see below), whose sum is σ = 2285377560. Its totient is φ = 380896256.

The previous prime is 1142688773. The next prime is 1142688787. The reversal of 1142688774 is 4778862411.

It is a sphenic number, since it is the product of 3 distinct primes.

1142688774 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142688773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95224059 + ... + 95224070.

It is an arithmetic number, because the mean of its divisors is an integer number (285672195).

Almost surely, 2^1142688774 is an apocalyptic number.

1142688774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1142688774 is a wasteful number, since it uses less digits than its factorization.

1142688774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190448134.

The product of its digits is 602112, while the sum is 48.

The square root of 1142688774 is about 33803.6798884382. The cubic root of 1142688774 is about 1045.4645718679.

The spelling of 1142688774 in words is "one billion, one hundred forty-two million, six hundred eighty-eight thousand, seven hundred seventy-four".