7256940 has 48 divisors (see below), whose sum is σ = 20590080. Its totient is φ = 1909440.

The previous prime is 7256911. The next prime is 7256947. The reversal of 7256940 is 496527.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256947) 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, 3975 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (428960).

Almost surely, 2^7256940 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 7256940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10295040).

7256940 is an abundant number, since it is smaller than the sum of its proper divisors (13333140).

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

7256940 is a wasteful number, since it uses less digits than its factorization.

7256940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 7256940 is about 2693.8708209563. The cubic root of 7256940 is about 193.6055683916.

The spelling of 7256940 in words is "seven million, two hundred fifty-six thousand, nine hundred forty".