7869040 has 80 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 2868480.

The previous prime is 7869031. The next prime is 7869041. The reversal of 7869040 is 409687.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 7868987 and 7869005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7869041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47037 + ... + 47203.

It is an arithmetic number, because the mean of its divisors is an integer number (249984).

Almost surely, 2^7869040 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 7869040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9999360).

7869040 is an abundant number, since it is smaller than the sum of its proper divisors (12129680).

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

7869040 is a wasteful number, since it uses less digits than its factorization.

7869040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 7869040 is about 2805.1809210816. The cubic root of 7869040 is about 198.9026568684.

The spelling of 7869040 in words is "seven million, eight hundred sixty-nine thousand, forty".