840192912 has 160 divisors (see below), whose sum is σ = 2630664960. Its totient is φ = 258380928.

The previous prime is 840192889. The next prime is 840192943. The reversal of 840192912 is 219291048.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453973 + ... + 455819.

It is an arithmetic number, because the mean of its divisors is an integer number (16441656).

Almost surely, 2^840192912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840192912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1315332480).

840192912 is an abundant number, since it is smaller than the sum of its proper divisors (1790472048).

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

840192912 is a wasteful number, since it uses less digits than its factorization.

840192912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 840192912 is about 28986.0813495029. The cubic root of 840192912 is about 943.6110206760.

The spelling of 840192912 in words is "eight hundred forty million, one hundred ninety-two thousand, nine hundred twelve".