1625228 has 24 divisors (see below), whose sum is σ = 3178560. Its totient is φ = 720720.

The previous prime is 1625227. The next prime is 1625257. The reversal of 1625228 is 8225261.

It is a junction number, because it is equal to n+sod(n) for n = 1625197 and 1625206.

It is not an unprimeable number, because it can be changed into a prime (1625227) 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, 1463 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (132440).

2^1625228 is an apocalyptic number.

It is an amenable number.

1625228 is a deficient number, since it is larger than the sum of its proper divisors (1553332).

1625228 is a wasteful number, since it uses less digits than its factorization.

1625228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 915 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 1625228 is about 1274.8443042191. The cubic root of 1625228 is about 117.5722326346.

The spelling of 1625228 in words is "one million, six hundred twenty-five thousand, two hundred twenty-eight".