7286428 has 12 divisors (see below), whose sum is σ = 12776512. Its totient is φ = 3636000.

The previous prime is 7286417. The next prime is 7286429. The reversal of 7286428 is 8246827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7286429) 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, 928 + ... + 3928.

Almost surely, 2^7286428 is an apocalyptic number.

It is an amenable number.

7286428 is a deficient number, since it is larger than the sum of its proper divisors (5490084).

7286428 is a wasteful number, since it uses less digits than its factorization.

7286428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612 (or 3610 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 7286428 is about 2699.3384374694. The cubic root of 7286428 is about 193.8674476256.

The spelling of 7286428 in words is "seven million, two hundred eighty-six thousand, four hundred twenty-eight".