840763392 has 192 divisors, whose sum is σ = 2599309440. Its totient is φ = 236716032.

The previous prime is 840763387. The next prime is 840763423. The reversal of 840763392 is 293367048.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4859818 + ... + 4859990.

It is an arithmetic number, because the mean of its divisors is an integer number (13538070).

Almost surely, 2^840763392 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 840763392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299654720).

840763392 is an abundant number, since it is smaller than the sum of its proper divisors (1758546048).

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

840763392 is a wasteful number, since it uses less digits than its factorization.

840763392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 840763392 is about 28995.9202647545. The cubic root of 840763392 is about 943.8245388724.

The spelling of 840763392 in words is "eight hundred forty million, seven hundred sixty-three thousand, three hundred ninety-two".