7275640 has 16 divisors (see below), whose sum is σ = 16370280. Its totient is φ = 2910240.

The previous prime is 7275637. The next prime is 7275673. The reversal of 7275640 is 465727.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90906 + ... + 90985.

Almost surely, 2^7275640 is an apocalyptic number.

It is an amenable number.

7275640 is an abundant number, since it is smaller than the sum of its proper divisors (9094640).

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

7275640 is a wasteful number, since it uses less digits than its factorization.

7275640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181902 (or 181898 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 7275640 is about 2697.3394298827. The cubic root of 7275640 is about 193.7717228505.

The spelling of 7275640 in words is "seven million, two hundred seventy-five thousand, six hundred forty".