789990420 has 24 divisors (see below), whose sum is σ = 2211973344. Its totient is φ = 210664096.

The previous prime is 789990413. The next prime is 789990437. The reversal of 789990420 is 24099987.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 789990420.

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 7 ways as a sum of consecutive naturals, for example, 6583194 + ... + 6583313.

It is an arithmetic number, because the mean of its divisors is an integer number (92165556).

Almost surely, 2^789990420 is an apocalyptic number.

It is an amenable number.

789990420 is an abundant number, since it is smaller than the sum of its proper divisors (1421982924).

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

789990420 is a wasteful number, since it uses less digits than its factorization.

789990420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13166519 (or 13166517 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 789990420 is about 28106.7682240417. The cubic root of 789990420 is about 924.4298097827.

The spelling of 789990420 in words is "seven hundred eighty-nine million, nine hundred ninety thousand, four hundred twenty".