438755748 has 12 divisors (see below), whose sum is σ = 1023763440. Its totient is φ = 146251912.

The previous prime is 438755699. The next prime is 438755749. The reversal of 438755748 is 847557834.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 438755748.

It is not an unprimeable number, because it can be changed into a prime (438755749) 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 3 ways as a sum of consecutive naturals, for example, 18281478 + ... + 18281501.

It is an arithmetic number, because the mean of its divisors is an integer number (85313620).

Almost surely, 2^438755748 is an apocalyptic number.

It is an amenable number.

438755748 is an abundant number, since it is smaller than the sum of its proper divisors (585007692).

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

438755748 is a wasteful number, since it uses less digits than its factorization.

438755748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36562986 (or 36562984 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 51.

The square root of 438755748 is about 20946.4972728139. The cubic root of 438755748 is about 759.8728711642.

The spelling of 438755748 in words is "four hundred thirty-eight million, seven hundred fifty-five thousand, seven hundred forty-eight".