807421868 has 60 divisors (see below), whose sum is σ = 1647734760. Its totient is φ = 344995200.

The previous prime is 807421861. The next prime is 807421933. The reversal of 807421868 is 868124708.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (807421861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 995183 + ... + 995993.

It is an arithmetic number, because the mean of its divisors is an integer number (27462246).

Almost surely, 2^807421868 is an apocalyptic number.

It is an amenable number.

807421868 is an abundant number, since it is smaller than the sum of its proper divisors (840312892).

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

807421868 is a wasteful number, since it uses less digits than its factorization.

807421868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 807421868 is about 28415.1696809996. The cubic root of 807421868 is about 931.1797061305.

The spelling of 807421868 in words is "eight hundred seven million, four hundred twenty-one thousand, eight hundred sixty-eight".