438087660 has 96 divisors (see below), whose sum is σ = 1271918592. Its totient is φ = 112546560.

The previous prime is 438087649. The next prime is 438087667. The reversal of 438087660 is 66780834.

It is not an unprimeable number, because it can be changed into a prime (438087667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589249 + ... + 589991.

It is an arithmetic number, because the mean of its divisors is an integer number (13249152).

Almost surely, 2^438087660 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 438087660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635959296).

438087660 is an abundant number, since it is smaller than the sum of its proper divisors (833830932).

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

438087660 is a wasteful number, since it uses less digits than its factorization.

438087660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 438087660 is about 20930.5437100903. The cubic root of 438087660 is about 759.4869922042.

The spelling of 438087660 in words is "four hundred thirty-eight million, eighty-seven thousand, six hundred sixty".