7082640 has 100 divisors (see below), whose sum is σ = 24621564. Its totient is φ = 1886976.

The previous prime is 7082629. The next prime is 7082657. The reversal of 7082640 is 462807.

It can be written as a sum of positive squares in 2 ways, for example, as 5308416 + 1774224 = 2304^2 + 1332^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5934 + ... + 7026.

Almost surely, 2^7082640 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 7082640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12310782).

7082640 is an abundant number, since it is smaller than the sum of its proper divisors (17538924).

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

7082640 is a wasteful number, since it uses less digits than its factorization.

7082640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 7082640 is about 2661.3229792718. The cubic root of 7082640 is about 192.0429591374.

The spelling of 7082640 in words is "seven million, eighty-two thousand, six hundred forty".