438129444 has 48 divisors (see below), whose sum is σ = 1059952320. Its totient is φ = 140751360.

The previous prime is 438129437. The next prime is 438129499. The reversal of 438129444 is 444921834.

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 15 ways as a sum of consecutive naturals, for example, 35472 + ... + 46200.

It is an arithmetic number, because the mean of its divisors is an integer number (22082340).

Almost surely, 2^438129444 is an apocalyptic number.

It is an amenable number.

438129444 is an abundant number, since it is smaller than the sum of its proper divisors (621822876).

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

438129444 is a wasteful number, since it uses less digits than its factorization.

438129444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10860 (or 10858 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 438129444 is about 20931.5418447853. The cubic root of 438129444 is about 759.5111375968.

The spelling of 438129444 in words is "four hundred thirty-eight million, one hundred twenty-nine thousand, four hundred forty-four".