774228 has 48 divisors (see below), whose sum is σ = 2226560. Its totient is φ = 203904.

The previous prime is 774223. The next prime is 774229. The reversal of 774228 is 822477.

It is a junction number, because it is equal to n+sod(n) for n = 774195 and 774204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774223) by changing a digit.

774228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738 + ... + 1446.

2⁷⁷⁴²²⁸ is an apocalyptic number.

774228 is a gapful number since it is divisible by the number (78) 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 774228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113280).

774228 is an abundant number, since it is smaller than the sum of its proper divisors (1452332).

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

774228 is a wasteful number, since it uses less digits than its factorization.

774228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 734 counting only the distinct ones).

The product of its digits is 6272, while the sum is 30.

The square root of 774228 is about 879.9022673002. The cubic root of 774228 is about 91.8240177140.

The spelling of 774228 in words is "seven hundred seventy-four thousand, two hundred twenty-eight".