1728714420 has 96 divisors (see below), whose sum is σ = 5398525440. Its totient is φ = 459250560.

The previous prime is 1728714401. The next prime is 1728714433. The reversal of 1728714420 is 244178271.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140434 + ... + 152246.

It is an arithmetic number, because the mean of its divisors is an integer number (56234640).

Almost surely, 2^1728714420 is an apocalyptic number.

1728714420 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 1728714420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2699262720).

1728714420 is an abundant number, since it is smaller than the sum of its proper divisors (3669811020).

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

1728714420 is a wasteful number, since it uses less digits than its factorization.

1728714420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12102 (or 12094 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1728714420 is about 41577.8116307244. The cubic root of 1728714420 is about 1200.1653522145.

The spelling of 1728714420 in words is "one billion, seven hundred twenty-eight million, seven hundred fourteen thousand, four hundred twenty".