1790000000 has 128 divisors (see below), whose sum is σ = 4482410400. Its totient is φ = 712000000.

The previous prime is 1789999999. The next prime is 1790000041. The reversal of 1790000000 is 971.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9999911 + ... + 10000089.

Almost surely, 2^1790000000 is an apocalyptic number.

1790000000 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 1790000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2241205200).

1790000000 is an abundant number, since it is smaller than the sum of its proper divisors (2692410400).

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

1790000000 is an frugal number, since it uses more digits than its factorization.

1790000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 1790000000 is about 42308.3916026124. The cubic root of 1790000000 is about 1214.1835471794.

Adding to 1790000000 its reverse (971), we get a palindrome (1790000971).

The spelling of 1790000000 in words is "one billion, seven hundred ninety million", and thus it is an aban number.