7075640 has 64 divisors (see below), whose sum is σ = 18718560. Its totient is φ = 2373120.

The previous prime is 7075637. The next prime is 7075643. The reversal of 7075640 is 465707.

7075640 = 257² + 258² + ... + 336².

It is an interprime number because it is at equal distance from previous prime (7075637) and next prime (7075643).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7075643) 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, 5102 + ... + 6338.

Almost surely, 2^7075640 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 7075640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9359280).

7075640 is an abundant number, since it is smaller than the sum of its proper divisors (11642920).

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

7075640 is a wasteful number, since it uses less digits than its factorization.

7075640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 7075640 is about 2660.0075187864. The cubic root of 7075640 is about 191.9796708800.

The spelling of 7075640 in words is "seven million, seventy-five thousand, six hundred forty".