7113640 has 16 divisors (see below), whose sum is σ = 16005780. Its totient is φ = 2845440.

The previous prime is 7113611. The next prime is 7113641. The reversal of 7113640 is 463117.

It can be written as a sum of positive squares in 2 ways, for example, as 7107556 + 6084 = 2666^2 + 78^2 .

It is not an unprimeable number, because it can be changed into a prime (7113641) by changing a digit.

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, 88881 + ... + 88960.

Almost surely, 2^7113640 is an apocalyptic number.

It is an amenable number.

7113640 is an abundant number, since it is smaller than the sum of its proper divisors (8892140).

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

7113640 is a wasteful number, since it uses less digits than its factorization.

7113640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177852 (or 177848 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7113640 is about 2667.1407911844. The cubic root of 7113640 is about 192.3227355617.

Adding to 7113640 its reverse (463117), we get a palindrome (7576757).

The spelling of 7113640 in words is "seven million, one hundred thirteen thousand, six hundred forty".