6920240 has 40 divisors (see below), whose sum is σ = 16793568. Its totient is φ = 2647040.

The previous prime is 6920227. The next prime is 6920257. The reversal of 6920240 is 420296.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

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, 41 + ... + 3720.

Almost surely, 2^6920240 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 6920240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8396784).

6920240 is an abundant number, since it is smaller than the sum of its proper divisors (9873328).

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

6920240 is a wasteful number, since it uses less digits than its factorization.

6920240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797 (or 3791 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 6920240 is about 2630.6349043529. The cubic root of 6920240 is about 190.5637916896.

The spelling of 6920240 in words is "six million, nine hundred twenty thousand, two hundred forty".