1908828 has 36 divisors (see below), whose sum is σ = 5110560. Its totient is φ = 598656.

The previous prime is 1908817. The next prime is 1908857. The reversal of 1908828 is 8288091.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1908792 and 1908801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 948 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (141960).

2^1908828 is an apocalyptic number.

1908828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1908828 is an abundant number, since it is smaller than the sum of its proper divisors (3201732).

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

1908828 is a wasteful number, since it uses less digits than its factorization.

1908828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1908828 is about 1381.6034163247. The cubic root of 1908828 is about 124.0477616912.

The spelling of 1908828 in words is "one million, nine hundred eight thousand, eight hundred twenty-eight".