808025840 has 40 divisors (see below), whose sum is σ = 1943447040. Its totient is φ = 312064256.

The previous prime is 808025839. The next prime is 808025843. The reversal of 808025840 is 48520808.

808025840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 808025840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808025843) 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, 171824 + ... + 176463.

It is an arithmetic number, because the mean of its divisors is an integer number (48586176).

Almost surely, 2^808025840 is an apocalyptic number.

808025840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

808025840 is an abundant number, since it is smaller than the sum of its proper divisors (1135421200).

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

808025840 is a wasteful number, since it uses less digits than its factorization.

808025840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348329 (or 348323 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 808025840 is about 28425.7953274838. The cubic root of 808025840 is about 931.4118302607.

The spelling of 808025840 in words is "eight hundred eight million, twenty-five thousand, eight hundred forty".