7267240 has 32 divisors (see below), whose sum is σ = 16528680. Its totient is φ = 2875392.

The previous prime is 7267229. The next prime is 7267243. The reversal of 7267240 is 427627.

It can be written as a sum of positive squares in 4 ways, for example, as 3526884 + 3740356 = 1878^2 + 1934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7267199 and 7267208.

It is not an unprimeable number, because it can be changed into a prime (7267243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2944 + ... + 4816.

Almost surely, 2^7267240 is an apocalyptic number.

It is an amenable number.

7267240 is an abundant number, since it is smaller than the sum of its proper divisors (9261440).

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

7267240 is a wasteful number, since it uses less digits than its factorization.

7267240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1977 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 7267240 is about 2695.7818902871. The cubic root of 7267240 is about 193.6971218862.

The spelling of 7267240 in words is "seven million, two hundred sixty-seven thousand, two hundred forty".