790000000 has 128 divisors (see below), whose sum is σ = 1992182400. Its totient is φ = 312000000.

The previous prime is 789999989. The next prime is 790000019. The reversal of 790000000 is 97.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9999961 + ... + 10000039.

It is an arithmetic number, because the mean of its divisors is an integer number (15563925).

Almost surely, 2^790000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 790000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996091200).

790000000 is an abundant number, since it is smaller than the sum of its proper divisors (1202182400).

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

790000000 is an frugal number, since it uses more digits than its factorization.

790000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 790000000 is about 28106.9386451104. The cubic root of 790000000 is about 924.4335465376.

Adding to 790000000 its reverse (97), we get a palindrome (790000097).

The spelling of 790000000 in words is "seven hundred ninety million", and thus it is an aban number.