1236928 has 56 divisors (see below), whose sum is σ = 3072384. Its totient is φ = 480000.

The previous prime is 1236901. The next prime is 1236953. The reversal of 1236928 is 8296321.

It is a tau number, because it is divible by the number of its divisors (56).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1236928.

It is a congruent number.

It is an unprimeable number.

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, 4803 + ... + 5053.

It is an arithmetic number, because the mean of its divisors is an integer number (54864).

2^1236928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1236928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536192).

1236928 is an abundant number, since it is smaller than the sum of its proper divisors (1835456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1236928 is a wasteful number, since it uses less digits than its factorization.

1236928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 271 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 1236928 is about 1112.1726484679. The cubic root of 1236928 is about 107.3449142844.

The spelling of 1236928 in words is "one million, two hundred thirty-six thousand, nine hundred twenty-eight".