840796740 has 384 divisors, whose sum is σ = 3290112000. Its totient is φ = 173809152.

The previous prime is 840796709. The next prime is 840796753. The reversal of 840796740 is 47697048.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1651606 + ... + 1652114.

It is an arithmetic number, because the mean of its divisors is an integer number (8568000).

Almost surely, 2^840796740 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 840796740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645056000).

840796740 is an abundant number, since it is smaller than the sum of its proper divisors (2449315260).

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

840796740 is a wasteful number, since it uses less digits than its factorization.

840796740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 840796740 is about 28996.4953054675. The cubic root of 840796740 is about 943.8370173116.

The spelling of 840796740 in words is "eight hundred forty million, seven hundred ninety-six thousand, seven hundred forty".