1230928 has 20 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 608864.

The previous prime is 1230913. The next prime is 1230941. The reversal of 1230928 is 8290321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (120528).

2^1230928 is an apocalyptic number.

It is an amenable number.

1230928 is a deficient number, since it is larger than the sum of its proper divisors (1179632).

1230928 is a wasteful number, since it uses less digits than its factorization.

1230928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1230928 is about 1109.4719464682. The cubic root of 1230928 is about 107.1710659270.

The spelling of 1230928 in words is "one million, two hundred thirty thousand, nine hundred twenty-eight".