6924840 has 128 divisors (see below), whose sum is σ = 23466240. Its totient is φ = 1622016.

The previous prime is 6924833. The next prime is 6924847. The reversal of 6924840 is 484296.

It is an interprime number because it is at equal distance from previous prime (6924833) and next prime (6924847).

It is not an unprimeable number, because it can be changed into a prime (6924847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35784 + ... + 35976.

It is an arithmetic number, because the mean of its divisors is an integer number (183330).

Almost surely, 2^6924840 is an apocalyptic number.

6924840 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 6924840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11733120).

6924840 is an abundant number, since it is smaller than the sum of its proper divisors (16541400).

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

6924840 is a wasteful number, since it uses less digits than its factorization.

6924840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 6924840 is about 2631.5090727565. The cubic root of 6924840 is about 190.6060059907.

The spelling of 6924840 in words is "six million, nine hundred twenty-four thousand, eight hundred forty".