808345980 has 240 divisors, whose sum is σ = 2761111584. Its totient is φ = 196784640.

The previous prime is 808345969. The next prime is 808345999. The reversal of 808345980 is 89543808.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2758714 + ... + 2759006.

Almost surely, 2^808345980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808345980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380555792).

808345980 is an abundant number, since it is smaller than the sum of its proper divisors (1952765604).

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

808345980 is a wasteful number, since it uses less digits than its factorization.

808345980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 808345980 is about 28431.4259227356. The cubic root of 808345980 is about 931.5348225370.

The spelling of 808345980 in words is "eight hundred eight million, three hundred forty-five thousand, nine hundred eighty".