7168240 has 20 divisors (see below), whose sum is σ = 16666344. Its totient is φ = 2867264.

The previous prime is 7168219. The next prime is 7168243. The reversal of 7168240 is 428617.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 7168199 and 7168208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7168243) 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, 44722 + ... + 44881.

Almost surely, 2^7168240 is an apocalyptic number.

It is an amenable number.

7168240 is an abundant number, since it is smaller than the sum of its proper divisors (9498104).

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

7168240 is a wasteful number, since it uses less digits than its factorization.

7168240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89616 (or 89610 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 7168240 is about 2677.3569056067. The cubic root of 7168240 is about 192.8135330227.

The spelling of 7168240 in words is "seven million, one hundred sixty-eight thousand, two hundred forty".