6928240 has 40 divisors (see below), whose sum is σ = 17574768. Its totient is φ = 2519040.

The previous prime is 6928237. The next prime is 6928241. The reversal of 6928240 is 428296.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6928241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3057 + ... + 4816.

Almost surely, 2^6928240 is an apocalyptic number.

It is an amenable number.

6928240 is an abundant number, since it is smaller than the sum of its proper divisors (10646528).

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

6928240 is a wasteful number, since it uses less digits than its factorization.

6928240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897 (or 7891 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6928240 is about 2632.1550106329. The cubic root of 6928240 is about 190.6371958514.

The spelling of 6928240 in words is "six million, nine hundred twenty-eight thousand, two hundred forty".