1729530 has 48 divisors (see below), whose sum is σ = 4908384. Its totient is φ = 419040.

The previous prime is 1729523. The next prime is 1729543. The reversal of 1729530 is 359271.

It is a junction number, because it is equal to n+sod(n) for n = 1729494 and 1729503.

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 23 ways as a sum of consecutive naturals, for example, 117 + ... + 1863.

It is an arithmetic number, because the mean of its divisors is an integer number (102258).

2^1729530 is an apocalyptic number.

1729530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1729530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2454192).

1729530 is an abundant number, since it is smaller than the sum of its proper divisors (3178854).

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

1729530 is a wasteful number, since it uses less digits than its factorization.

1729530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1729530 is about 1315.1159644685. The cubic root of 1729530 is about 120.0354062190.

The spelling of 1729530 in words is "one million, seven hundred twenty-nine thousand, five hundred thirty".