438865860 has 24 divisors (see below), whose sum is σ = 1228824576. Its totient is φ = 117030880.

The previous prime is 438865859. The next prime is 438865871. The reversal of 438865860 is 68568834.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3657156 + ... + 3657275.

It is an arithmetic number, because the mean of its divisors is an integer number (51201024).

Almost surely, 2^438865860 is an apocalyptic number.

It is an amenable number.

438865860 is an abundant number, since it is smaller than the sum of its proper divisors (789958716).

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

438865860 is a wasteful number, since it uses less digits than its factorization.

438865860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314443 (or 7314441 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 438865860 is about 20949.1255187418. The cubic root of 438865860 is about 759.9364328181.

The spelling of 438865860 in words is "four hundred thirty-eight million, eight hundred sixty-five thousand, eight hundred sixty".