2019790080 has 1080 divisors, whose sum is σ = 9473498496. Its totient is φ = 401448960.

The previous prime is 2019790067. The next prime is 2019790121. The reversal of 2019790080 is 800979102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1080).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 87816949 + ... + 87816971.

Almost surely, 2^2019790080 is an apocalyptic number.

2019790080 is a gapful number since it is divisible by the number (20) 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 2019790080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4736749248).

2019790080 is an abundant number, since it is smaller than the sum of its proper divisors (7453708416).

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

2019790080 is a wasteful number, since it uses less digits than its factorization.

2019790080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2019790080 is about 44942.0747184640. The cubic root of 2019790080 is about 1264.0630743508.

The spelling of 2019790080 in words is "two billion, nineteen million, seven hundred ninety thousand, eighty".