1933888 has 56 divisors (see below), whose sum is σ = 4352544. Its totient is φ = 844800.

The previous prime is 1933861. The next prime is 1933891. The reversal of 1933888 is 8883391.

It is a self number, because there is not a number n which added to its sum of digits gives 1933888.

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 7 ways as a sum of consecutive naturals, for example, 28831 + ... + 28897.

It is an arithmetic number, because the mean of its divisors is an integer number (77724).

2^1933888 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 1933888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176272).

1933888 is an abundant number, since it is smaller than the sum of its proper divisors (2418656).

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

1933888 is a wasteful number, since it uses less digits than its factorization.

1933888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 121 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 1933888 is about 1390.6430167372. The cubic root of 1933888 is about 124.5882558901.

The spelling of 1933888 in words is "one million, nine hundred thirty-three thousand, eight hundred eighty-eight".