1720232748 has 108 divisors (see below), whose sum is σ = 4845100680. Its totient is φ = 527578272.

The previous prime is 1720232747. The next prime is 1720232791. The reversal of 1720232748 is 8472320271.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (108).

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

It is not an unprimeable number, because it can be changed into a prime (1720232741) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5603211 + ... + 5603517.

Almost surely, 2^1720232748 is an apocalyptic number.

1720232748 is a gapful number since it is divisible by the number (18) 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 1720232748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2422550340).

1720232748 is an abundant number, since it is smaller than the sum of its proper divisors (3124867932).

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

1720232748 is a wasteful number, since it uses less digits than its factorization.

1720232748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1720232748 is about 41475.6886380443. The cubic root of 1720232748 is about 1198.1993243241.

Multiplying 1720232748 by its product of nonzero digits (37632), we get a square (64735798772736 = 8045856²).

The spelling of 1720232748 in words is "one billion, seven hundred twenty million, two hundred thirty-two thousand, seven hundred forty-eight".