438902500 has 45 divisors (see below), whose sum is σ = 962088127. Its totient is φ = 175142000.

The previous prime is 438902479. The next prime is 438902507. The reversal of 438902500 is 5209834.

The square root of 438902500 is 20950.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 34409956 + 404492544 = 5866^2 + 20112^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438902507) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1047291 + ... + 1047709.

Almost surely, 2^438902500 is an apocalyptic number.

438902500 is the 20950-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438902500

438902500 is an abundant number, since it is smaller than the sum of its proper divisors (523185627).

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

438902500 is an frugal number, since it uses more digits than its factorization.

438902500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 438902500 is about 759.9575807349.

The spelling of 438902500 in words is "four hundred thirty-eight million, nine hundred two thousand, five hundred".