1906828 has 48 divisors (see below), whose sum is σ = 4290048. Its totient is φ = 720000.

The previous prime is 1906811. The next prime is 1906829. The reversal of 1906828 is 8286091.

It is a junction number, because it is equal to n+sod(n) for n = 1906793 and 1906802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1906829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12553 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2^1906828 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 1906828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2145024).

1906828 is an abundant number, since it is smaller than the sum of its proper divisors (2383220).

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

1906828 is a wasteful number, since it uses less digits than its factorization.

1906828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1906828 is about 1380.8794299286. The cubic root of 1906828 is about 124.0044223189.

The spelling of 1906828 in words is "one million, nine hundred six thousand, eight hundred twenty-eight".