808618940 has 24 divisors (see below), whose sum is σ = 1797988752. Its totient is φ = 304421120.

The previous prime is 808618927. The next prime is 808618963. The reversal of 808618940 is 49816808.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 808618891 and 808618900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188806 + ... + 1189485.

It is an arithmetic number, because the mean of its divisors is an integer number (74916198).

Almost surely, 2^808618940 is an apocalyptic number.

It is an amenable number.

808618940 is an abundant number, since it is smaller than the sum of its proper divisors (989369812).

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

808618940 is a wasteful number, since it uses less digits than its factorization.

808618940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378317 (or 2378315 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 808618940 is about 28436.2258395871. The cubic root of 808618940 is about 931.6396634245.

The spelling of 808618940 in words is "eight hundred eight million, six hundred eighteen thousand, nine hundred forty".