1023828 has 24 divisors (see below), whose sum is σ = 2573088. Its totient is φ = 314976.

The previous prime is 1023821. The next prime is 1023833. The reversal of 1023828 is 8283201.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1023798 and 1023807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3126 + ... + 3437.

It is an arithmetic number, because the mean of its divisors is an integer number (107212).

2^1023828 is an apocalyptic number.

It is an amenable number.

1023828 is an abundant number, since it is smaller than the sum of its proper divisors (1549260).

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

1023828 is a wasteful number, since it uses less digits than its factorization.

1023828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1023828 is about 1011.8438614727. The cubic root of 1023828 is about 100.7880402792.

Adding to 1023828 its product of nonzero digits (768), we get a triangular number (1024596 = T₁₄₃₁).

The spelling of 1023828 in words is "one million, twenty-three thousand, eight hundred twenty-eight".