7726940 has 48 divisors (see below), whose sum is σ = 17696448. Its totient is φ = 2817024.

The previous prime is 7726933. The next prime is 7726973. The reversal of 7726940 is 496277.

It is a self number, because there is not a number n which added to its sum of digits gives 7726940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29249 + ... + 29511.

It is an arithmetic number, because the mean of its divisors is an integer number (368676).

Almost surely, 2^7726940 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 7726940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8848224).

7726940 is an abundant number, since it is smaller than the sum of its proper divisors (9969508).

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

7726940 is a wasteful number, since it uses less digits than its factorization.

7726940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 7726940 is about 2779.7373976691. The cubic root of 7726940 is about 197.6981081107.

The spelling of 7726940 in words is "seven million, seven hundred twenty-six thousand, nine hundred forty".