1724228 has 24 divisors (see below), whose sum is σ = 3326400. Its totient is φ = 775520.

The previous prime is 1724227. The next prime is 1724263. The reversal of 1724228 is 8224271.

It is a junction number, because it is equal to n+sod(n) for n = 1724197 and 1724206.

It is not an unprimeable number, because it can be changed into a prime (1724221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6425 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (138600).

2^1724228 is an apocalyptic number.

It is an amenable number.

1724228 is a deficient number, since it is larger than the sum of its proper divisors (1602172).

1724228 is a wasteful number, since it uses less digits than its factorization.

1724228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 425 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 1724228 is about 1313.0986253896. The cubic root of 1724228 is about 119.9126215757.

Adding to 1724228 its reverse (8224271), we get a palindrome (9948499).

The spelling of 1724228 in words is "one million, seven hundred twenty-four thousand, two hundred twenty-eight".