6840896940 has 144 divisors (see below), whose sum is σ = 20976228000. Its totient is φ = 1804529664.

The previous prime is 6840896939. The next prime is 6840896947. The reversal of 6840896940 is 496980486.

6840896940 is a `hidden beast` number, since 68 + 408 + 96 + 94 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (6840896947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10164444 + ... + 10165116.

It is an arithmetic number, because the mean of its divisors is an integer number (145668250).

Almost surely, 2^6840896940 is an apocalyptic number.

6840896940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6840896940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10488114000).

6840896940 is an abundant number, since it is smaller than the sum of its proper divisors (14135331060).

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

6840896940 is a wasteful number, since it uses less digits than its factorization.

6840896940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 6840896940 is about 82709.7149070168. The cubic root of 6840896940 is about 1898.3269612233.

The spelling of 6840896940 in words is "six billion, eight hundred forty million, eight hundred ninety-six thousand, nine hundred forty".