1427228 has 24 divisors (see below), whose sum is σ = 2755200. Its totient is φ = 641520.

The previous prime is 1427227. The next prime is 1427233. The reversal of 1427228 is 8227241.

It is a junction number, because it is equal to n+sod(n) for n = 1427197 and 1427206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7073 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (114800).

2^1427228 is an apocalyptic number.

It is an amenable number.

1427228 is a deficient number, since it is larger than the sum of its proper divisors (1327972).

1427228 is a wasteful number, since it uses less digits than its factorization.

1427228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

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

The square root of 1427228 is about 1194.6664806547. Note that the first 3 decimals coincide. The cubic root of 1427228 is about 112.5894728550.

The spelling of 1427228 in words is "one million, four hundred twenty-seven thousand, two hundred twenty-eight".