1142017998 has 32 divisors (see below), whose sum is σ = 2493054720. Its totient is φ = 345874560.

The previous prime is 1142017997. The next prime is 1142018039. The reversal of 1142017998 is 8997102411.

It is a Curzon number.

It is a congruent number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155943 + ... + 163101.

It is an arithmetic number, because the mean of its divisors is an integer number (77907960).

Almost surely, 2^1142017998 is an apocalyptic number.

1142017998 is an abundant number, since it is smaller than the sum of its proper divisors (1351036722).

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

1142017998 is a wasteful number, since it uses less digits than its factorization.

1142017998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9592.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 1142017998 is about 33793.7567902712. The cubic root of 1142017998 is about 1045.2599638639.

The spelling of 1142017998 in words is "one billion, one hundred forty-two million, seventeen thousand, nine hundred ninety-eight".