19202810940 has 240 divisors, whose sum is σ = 63983193120. Its totient is φ = 4807434240.

The previous prime is 19202810927. The next prime is 19202810971. The reversal of 19202810940 is 4901820291.

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 = 19202810895 and 19202810904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3475380 + ... + 3480900.

It is an arithmetic number, because the mean of its divisors is an integer number (266596638).

Almost surely, 2^19202810940 is an apocalyptic number.

19202810940 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 19202810940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31991596560).

19202810940 is an abundant number, since it is smaller than the sum of its proper divisors (44780382180).

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

19202810940 is a wasteful number, since it uses less digits than its factorization.

19202810940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 5663 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 19202810940 in words is "nineteen billion, two hundred two million, eight hundred ten thousand, nine hundred forty".