1869828 has 48 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 576288.

The previous prime is 1869823. The next prime is 1869839. The reversal of 1869828 is 8289681.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1869828.

It is not an unprimeable number, because it can be changed into a prime (1869823) 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, 13383 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (98000).

2^1869828 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 1869828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352000).

1869828 is an abundant number, since it is smaller than the sum of its proper divisors (2834172).

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

1869828 is a wasteful number, since it uses less digits than its factorization.

1869828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 222 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 1869828 is about 1367.4165422431. The cubic root of 1869828 is about 123.1971193176.

The spelling of 1869828 in words is "one million, eight hundred sixty-nine thousand, eight hundred twenty-eight".