1142017992 has 48 divisors (see below), whose sum is σ = 3094640640. Its totient is φ = 380466528.

The previous prime is 1142017991. The next prime is 1142017997. The reversal of 1142017992 is 2997102411.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1142017991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 190513 + ... + 196415.

It is an arithmetic number, because the mean of its divisors is an integer number (64471680).

Almost surely, 2^1142017992 is an apocalyptic number.

1142017992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142017992 is an abundant number, since it is smaller than the sum of its proper divisors (1952622648).

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

1142017992 is a wasteful number, since it uses less digits than its factorization.

1142017992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602 (or 8595 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1142017992 is about 33793.7567014974. The cubic root of 1142017992 is about 1045.2599620333.

The spelling of 1142017992 in words is "one billion, one hundred forty-two million, seventeen thousand, nine hundred ninety-two".