788817420 has 48 divisors (see below), whose sum is σ = 2454100320. Its totient is φ = 210351168.

The previous prime is 788817401. The next prime is 788817431. The reversal of 788817420 is 24718887.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 729847 + ... + 730926.

It is an arithmetic number, because the mean of its divisors is an integer number (51127090).

Almost surely, 2^788817420 is an apocalyptic number.

It is an amenable number.

788817420 is an abundant number, since it is smaller than the sum of its proper divisors (1665282900).

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

788817420 is a wasteful number, since it uses less digits than its factorization.

788817420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460791 (or 1460783 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 788817420 is about 28085.8936122745. The cubic root of 788817420 is about 923.9720433437.

The spelling of 788817420 in words is "seven hundred eighty-eight million, eight hundred seventeen thousand, four hundred twenty".