19848920 has 192 divisors, whose sum is σ = 60328800. Its totient is φ = 5806080.

The previous prime is 19848889. The next prime is 19848923. The reversal of 19848920 is 2984891.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19848923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 484100 + ... + 484140.

Almost surely, 2^19848920 is an apocalyptic number.

19848920 is a gapful number since it is divisible by the number (10) 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 19848920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30164400).

19848920 is an abundant number, since it is smaller than the sum of its proper divisors (40479880).

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

19848920 is a wasteful number, since it uses less digits than its factorization.

19848920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 19848920 is about 4455.2126773028. The cubic root of 19848920 is about 270.7565430158.

The spelling of 19848920 in words is "nineteen million, eight hundred forty-eight thousand, nine hundred twenty".