438801940 has 24 divisors (see below), whose sum is σ = 923700960. Its totient is φ = 175098528.

The previous prime is 438801919. The next prime is 438801947. The reversal of 438801940 is 49108834.

It is a self number, because there is not a number n which added to its sum of digits gives 438801940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438801947) 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 7 ways as a sum of consecutive naturals, for example, 17802 + ... + 34561.

It is an arithmetic number, because the mean of its divisors is an integer number (38487540).

Almost surely, 2^438801940 is an apocalyptic number.

It is an amenable number.

438801940 is an abundant number, since it is smaller than the sum of its proper divisors (484899020).

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

438801940 is a wasteful number, since it uses less digits than its factorization.

438801940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52791 (or 52789 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 438801940 is about 20947.5998625141. The cubic root of 438801940 is about 759.8995365820.

The spelling of 438801940 in words is "four hundred thirty-eight million, eight hundred one thousand, nine hundred forty".