19853028 has 72 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 5996736.

The previous prime is 19853017. The next prime is 19853033. The reversal of 19853028 is 82035891.

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 = 19852983 and 19853001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27253 + ... + 27971.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^19853028 is an apocalyptic number.

19853028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19853028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27518400).

19853028 is an abundant number, since it is smaller than the sum of its proper divisors (35183772).

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

19853028 is a wasteful number, since it uses less digits than its factorization.

19853028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 19853028 is about 4455.6736864362. The cubic root of 19853028 is about 270.7752206257.

The spelling of 19853028 in words is "nineteen million, eight hundred fifty-three thousand, twenty-eight".