1729220160 has 224 divisors, whose sum is σ = 5712439680. Its totient is φ = 442810368.

The previous prime is 1729220159. The next prime is 1729220183. The reversal of 1729220160 is 610229271.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 3161007 + ... + 3161553.

Almost surely, 2^1729220160 is an apocalyptic number.

1729220160 is a gapful number since it is divisible by the number (10) 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 1729220160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856219840).

1729220160 is an abundant number, since it is smaller than the sum of its proper divisors (3983219520).

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

1729220160 is a wasteful number, since it uses less digits than its factorization.

1729220160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1729220160 is about 41583.8930356454. The cubic root of 1729220160 is about 1200.2823779915.

The spelling of 1729220160 in words is "one billion, seven hundred twenty-nine million, two hundred twenty thousand, one hundred sixty".