1142640066 has 8 divisors (see below), whose sum is σ = 2285280144. Its totient is φ = 380880020.

The previous prime is 1142640041. The next prime is 1142640071. The reversal of 1142640066 is 6600462411.

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

1142640066 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95220000 + ... + 95220011.

It is an arithmetic number, because the mean of its divisors is an integer number (285660018).

Almost surely, 2^1142640066 is an apocalyptic number.

1142640066 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.

1142640066 is a wasteful number, since it uses less digits than its factorization.

1142640066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190440016.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1142640066 is about 33802.9594266538. The cubic root of 1142640066 is about 1045.4497170759.

The spelling of 1142640066 in words is "one billion, one hundred forty-two million, six hundred forty thousand, sixty-six".