1142730666 has 240 divisors, whose sum is σ = 3396634560. Its totient is φ = 283409280.

The previous prime is 1142730647. The next prime is 1142730683. The reversal of 1142730666 is 6660372411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142730666.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2008030 + ... + 2008598.

It is an arithmetic number, because the mean of its divisors is an integer number (14152644).

Almost surely, 2^1142730666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142730666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698317280).

1142730666 is an abundant number, since it is smaller than the sum of its proper divisors (2253903894).

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

1142730666 is a wasteful number, since it uses less digits than its factorization.

1142730666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1142730666 is about 33804.2995194398. The cubic root of 1142730666 is about 1045.4773476028.

The spelling of 1142730666 in words is "one billion, one hundred forty-two million, seven hundred thirty thousand, six hundred sixty-six".