190220381208 has 640 divisors, whose sum is σ = 650028456000. Its totient is φ = 51194695680.

The previous prime is 190220381203. The next prime is 190220381291. The reversal of 190220381208 is 802183022091.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190220381203) 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 159 ways as a sum of consecutive naturals, for example, 373713658 + ... + 373714166.

Almost surely, 2^190220381208 is an apocalyptic number.

190220381208 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 190220381208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325014228000).

190220381208 is an abundant number, since it is smaller than the sum of its proper divisors (459808074792).

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

190220381208 is a wasteful number, since it uses less digits than its factorization.

190220381208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 190220381208 in words is "one hundred ninety billion, two hundred twenty million, three hundred eighty-one thousand, two hundred eight".