1172928 has 56 divisors (see below), whose sum is σ = 3200400. Its totient is φ = 378880.

The previous prime is 1172921. The next prime is 1172929. The reversal of 1172928 is 8292711.

It is a junction number, because it is equal to n+sod(n) for n = 1172895 and 1172904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172921) 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, 7798 + ... + 7946.

It is an arithmetic number, because the mean of its divisors is an integer number (57150).

2^1172928 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 1172928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600200).

1172928 is an abundant number, since it is smaller than the sum of its proper divisors (2027472).

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

1172928 is a wasteful number, since it uses less digits than its factorization.

1172928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 195 counting only the distinct ones).

The product of its digits is 2016, while the sum is 30.

The square root of 1172928 is about 1083.0180053905. The cubic root of 1172928 is about 105.4606518281.

It can be divided in two parts, 11 and 72928, that multiplied together give a palindrome (802208).

The spelling of 1172928 in words is "one million, one hundred seventy-two thousand, nine hundred twenty-eight".