190438980000 has 240 divisors, whose sum is σ = 632601002880. Its totient is φ = 50139648000.

The previous prime is 190438979989. The next prime is 190438980007. The reversal of 190438980000 is 89834091.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (190438980007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4719912 + ... + 4760088.

It is an arithmetic number, because the mean of its divisors is an integer number (2635837512).

Almost surely, 2^190438980000 is an apocalyptic number.

190438980000 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 190438980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316300501440).

190438980000 is an abundant number, since it is smaller than the sum of its proper divisors (442162022880).

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

190438980000 is an equidigital number, since it uses as much as digits as its factorization.

190438980000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40289 (or 40266 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 190438980000 in words is "one hundred ninety billion, four hundred thirty-eight million, nine hundred eighty thousand".