438697984 has 36 divisors (see below), whose sum is σ = 877654764. Its totient is φ = 219283456.

The previous prime is 438697969. The next prime is 438698003. The reversal of 438697984 is 489796834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129399 + ... + 132745.

It is an arithmetic number, because the mean of its divisors is an integer number (24379299).

Almost surely, 2^438697984 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 438697984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438827382).

438697984 is an abundant number, since it is smaller than the sum of its proper divisors (438956780).

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

438697984 is an frugal number, since it uses more digits than its factorization.

438697984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381 (or 3349 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 58.

The square root of 438697984 is about 20945.1183811407. The cubic root of 438697984 is about 759.8395229037.

The spelling of 438697984 in words is "four hundred thirty-eight million, six hundred ninety-seven thousand, nine hundred eighty-four".