190221713280 has 256 divisors, whose sum is σ = 709161120000. Its totient is φ = 48055928832.

The previous prime is 190221713243. The next prime is 190221713287. The reversal of 190221713280 is 82317122091.

190221713280 is a `hidden beast` number, since 1 + 90 + 221 + 71 + 3 + 280 = 666.

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 (190221713287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38631 + ... + 618009.

It is an arithmetic number, because the mean of its divisors is an integer number (2770160625).

Almost surely, 2^190221713280 is an apocalyptic number.

190221713280 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 190221713280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354580560000).

190221713280 is an abundant number, since it is smaller than the sum of its proper divisors (518939406720).

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

190221713280 is a wasteful number, since it uses less digits than its factorization.

190221713280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579426 (or 579408 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 190221713280 in words is "one hundred ninety billion, two hundred twenty-one million, seven hundred thirteen thousand, two hundred eighty".