1228532 has 12 divisors (see below), whose sum is σ = 2159556. Its totient is φ = 611520.

The previous prime is 1228519. The next prime is 1228537. The reversal of 1228532 is 2358221.

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 155236 = 1036^2 + 394^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1228498 and 1228507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (179963).

2^1228532 is an apocalyptic number.

It is an amenable number.

1228532 is a deficient number, since it is larger than the sum of its proper divisors (931024).

1228532 is a wasteful number, since it uses less digits than its factorization.

1228532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1376 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1228532 is about 1108.3916275397. The cubic root of 1228532 is about 107.1014846401.

The spelling of 1228532 in words is "one million, two hundred twenty-eight thousand, five hundred thirty-two".