7278268 has 12 divisors (see below), whose sum is σ = 12767832. Its totient is φ = 3630320.

The previous prime is 7278263. The next prime is 7278269. The reversal of 7278268 is 8628727.

It is a self number, because there is not a number n which added to its sum of digits gives 7278268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7278263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (1063986).

Almost surely, 2^7278268 is an apocalyptic number.

It is an amenable number.

7278268 is a deficient number, since it is larger than the sum of its proper divisors (5489564).

7278268 is a wasteful number, since it uses less digits than its factorization.

7278268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4410 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 7278268 is about 2697.8265325999. The cubic root of 7278268 is about 193.7950505023.

The spelling of 7278268 in words is "seven million, two hundred seventy-eight thousand, two hundred sixty-eight".