6840620 has 24 divisors (see below), whose sum is σ = 14442288. Its totient is φ = 2721600.

The previous prime is 6840619. The next prime is 6840643. The reversal of 6840620 is 260486.

It is a self number, because there is not a number n which added to its sum of digits gives 6840620.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3410 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (601762).

Almost surely, 2^6840620 is an apocalyptic number.

It is an amenable number.

6840620 is an abundant number, since it is smaller than the sum of its proper divisors (7601668).

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

6840620 is a wasteful number, since it uses less digits than its factorization.

6840620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6840620 is about 2615.4578949010. The cubic root of 6840620 is about 189.8301344224.

The spelling of 6840620 in words is "six million, eight hundred forty thousand, six hundred twenty".