3591228 has 36 divisors (see below), whose sum is σ = 8854440. Its totient is φ = 1132704.

The previous prime is 3591193. The next prime is 3591281. The reversal of 3591228 is 8221953.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3591195 and 3591204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3918 + ... + 4746.

Almost surely, 2^3591228 is an apocalyptic number.

3591228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3591228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4427220).

3591228 is an abundant number, since it is smaller than the sum of its proper divisors (5263212).

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

3591228 is a wasteful number, since it uses less digits than its factorization.

3591228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 853 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 3591228 is about 1895.0535612483. The cubic root of 3591228 is about 153.1373025240.

The spelling of 3591228 in words is "three million, five hundred ninety-one thousand, two hundred twenty-eight".