1725381216 has 192 divisors, whose sum is σ = 5607403200. Its totient is φ = 512483328.

The previous prime is 1725381211. The next prime is 1725381227. The reversal of 1725381216 is 6121835271.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725381211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323080 + ... + 328376.

It is an arithmetic number, because the mean of its divisors is an integer number (29205225).

Almost surely, 2^1725381216 is an apocalyptic number.

1725381216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1725381216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2803701600).

1725381216 is an abundant number, since it is smaller than the sum of its proper divisors (3882021984).

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

1725381216 is a wasteful number, since it uses less digits than its factorization.

1725381216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358 (or 5344 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1725381216 is about 41537.7083624025. The cubic root of 1725381216 is about 1199.3934935099.

The spelling of 1725381216 in words is "one billion, seven hundred twenty-five million, three hundred eighty-one thousand, two hundred sixteen".