438934680 has 128 divisors (see below), whose sum is σ = 1467763200. Its totient is φ = 116678016.

The previous prime is 438934667. The next prime is 438934693. The reversal of 438934680 is 86439834.

It is an interprime number because it is at equal distance from previous prime (438934667) and next prime (438934693).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 590389 + ... + 591131.

It is an arithmetic number, because the mean of its divisors is an integer number (11466900).

Almost surely, 2^438934680 is an apocalyptic number.

438934680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438934680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733881600).

438934680 is an abundant number, since it is smaller than the sum of its proper divisors (1028828520).

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

438934680 is a wasteful number, since it uses less digits than its factorization.

438934680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 438934680 is about 20950.7680050159. The cubic root of 438934680 is about 759.9761534531.

The spelling of 438934680 in words is "four hundred thirty-eight million, nine hundred thirty-four thousand, six hundred eighty".