3228736 has 28 divisors (see below), whose sum is σ = 7323328. Its totient is φ = 1383552.

The previous prime is 3228733. The next prime is 3228737. The reversal of 3228736 is 6378223.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 3228698 and 3228707.

It is not an unprimeable number, because it can be changed into a prime (3228733) 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, 3156 + ... + 4051.

Almost surely, 2^3228736 is an apocalyptic number.

It is an amenable number.

3228736 is an abundant number, since it is smaller than the sum of its proper divisors (4094592).

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

3228736 is an equidigital number, since it uses as much as digits as its factorization.

3228736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226 (or 7216 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 3228736 is about 1796.8683869444. The cubic root of 3228736 is about 147.8010475016.

It can be divided in two parts, 32287 and 36, that added together give a palindrome (32323).

The spelling of 3228736 in words is "three million, two hundred twenty-eight thousand, seven hundred thirty-six".