808862020 has 24 divisors (see below), whose sum is σ = 1699147800. Its totient is φ = 323442432.

The previous prime is 808862009. The next prime is 808862027. The reversal of 808862020 is 20268808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 128278276 + 680583744 = 11326^2 + 26088^2 .

It is not an unprimeable number, because it can be changed into a prime (808862027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110226 + ... + 117334.

It is an arithmetic number, because the mean of its divisors is an integer number (70797825).

Almost surely, 2^808862020 is an apocalyptic number.

It is an amenable number.

808862020 is an abundant number, since it is smaller than the sum of its proper divisors (890285780).

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

808862020 is a wasteful number, since it uses less digits than its factorization.

808862020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12807 (or 12805 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 808862020 is about 28440.4996439936. The cubic root of 808862020 is about 931.7330078786.

The spelling of 808862020 in words is "eight hundred eight million, eight hundred sixty-two thousand, twenty".