438871884 has 48 divisors (see below), whose sum is σ = 1118468736. Its totient is φ = 132832000.

The previous prime is 438871883. The next prime is 438871903. The reversal of 438871884 is 488178834.

It is not an unprimeable number, because it can be changed into a prime (438871883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 155284 + ... + 158084.

It is an arithmetic number, because the mean of its divisors is an integer number (23301432).

Almost surely, 2^438871884 is an apocalyptic number.

438871884 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

438871884 is an abundant number, since it is smaller than the sum of its proper divisors (679596852).

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

438871884 is a wasteful number, since it uses less digits than its factorization.

438871884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006 (or 4004 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 51.

The square root of 438871884 is about 20949.2692951329. The cubic root of 438871884 is about 759.9399098381.

The spelling of 438871884 in words is "four hundred thirty-eight million, eight hundred seventy-one thousand, eight hundred eighty-four".