788012820 has 96 divisors (see below), whose sum is σ = 2801836800. Its totient is φ = 180116352.

The previous prime is 788012801. The next prime is 788012861. The reversal of 788012820 is 28210887.

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 31 ways as a sum of consecutive naturals, for example, 100455 + ... + 108014.

It is an arithmetic number, because the mean of its divisors is an integer number (29185800).

Almost surely, 2^788012820 is an apocalyptic number.

788012820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

788012820 is an abundant number, since it is smaller than the sum of its proper divisors (2013823980).

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

788012820 is a wasteful number, since it uses less digits than its factorization.

788012820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208494 (or 208486 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 788012820 is about 28071.5660411029. The cubic root of 788012820 is about 923.6577835425.

The spelling of 788012820 in words is "seven hundred eighty-eight million, twelve thousand, eight hundred twenty".