1142142660 has 48 divisors (see below), whose sum is σ = 3553334400. Its totient is φ = 304571232.

The previous prime is 1142142613. The next prime is 1142142679. The reversal of 1142142660 is 662412411.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 1057000 + ... + 1058079.

It is an arithmetic number, because the mean of its divisors is an integer number (74027800).

Almost surely, 2^1142142660 is an apocalyptic number.

1142142660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142142660 is an abundant number, since it is smaller than the sum of its proper divisors (2411191740).

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

1142142660 is a wasteful number, since it uses less digits than its factorization.

1142142660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115097 (or 2115089 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1142142660 is about 33795.6011930547. The cubic root of 1142142660 is about 1045.2979957971.

The spelling of 1142142660 in words is "one billion, one hundred forty-two million, one hundred forty-two thousand, six hundred sixty".