9784392142 has 32 divisors (see below), whose sum is σ = 17572391424. Its totient is φ = 3994980000.

The previous prime is 9784392113. The next prime is 9784392161. The reversal of 9784392142 is 2412934879.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20292 + ... + 141352.

It is an arithmetic number, because the mean of its divisors is an integer number (549137232).

Almost surely, 2^9784392142 is an apocalyptic number.

9784392142 is a deficient number, since it is larger than the sum of its proper divisors (7787999282).

9784392142 is a wasteful number, since it uses less digits than its factorization.

9784392142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121344.

The product of its digits is 870912, while the sum is 49.

The square root of 9784392142 is about 98916.0863661720. The cubic root of 9784392142 is about 2138.8382885919.

The spelling of 9784392142 in words is "nine billion, seven hundred eighty-four million, three hundred ninety-two thousand, one hundred forty-two".