1720032 has 96 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 506880.

The previous prime is 1720031. The next prime is 1720039. The reversal of 1720032 is 2300271.

It is a tau number, because it is divible by the number of its divisors (96).

1720032 is a Rhonda number in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 1719993 and 1720020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41932 + ... + 41972.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2^1720032 is an apocalyptic number.

1720032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 1311×1312.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1720032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).

1720032 is an abundant number, since it is smaller than the sum of its proper divisors (3360288).

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

1720032 is a wasteful number, since it uses less digits than its factorization.

1720032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 1720032 is about 1311.4999046893. The cubic root of 1720032 is about 119.8152713291.

The spelling of 1720032 in words is "one million, seven hundred twenty thousand, thirty-two".