2728368 has 30 divisors (see below), whose sum is σ = 7636044. Its totient is φ = 909408.

The previous prime is 2728357. The next prime is 2728373. The reversal of 2728368 is 8638272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 2⁴ + 7 + 2²⁰ + 8 + 3⁴ + 6⁸ + 8² .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9330 + ... + 9617.

2^2728368 is an apocalyptic number.

It is an amenable number.

2728368 is an abundant number, since it is smaller than the sum of its proper divisors (4907676).

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

2728368 is a wasteful number, since it uses less digits than its factorization.

2728368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18961 (or 18952 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2728368 is about 1651.7772246886. Note that the first 3 decimals coincide. The cubic root of 2728368 is about 139.7336432246.

The spelling of 2728368 in words is "two million, seven hundred twenty-eight thousand, three hundred sixty-eight".