1728308016 has 50 divisors (see below), whose sum is σ = 5002228572. Its totient is φ = 576102240.

The previous prime is 1728308011. The next prime is 1728308027. The reversal of 1728308016 is 6108038271.

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

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1728308011) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 665490 + ... + 668081.

Almost surely, 2^1728308016 is an apocalyptic number.

1728308016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1728308016 is an abundant number, since it is smaller than the sum of its proper divisors (3273920556).

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

1728308016 is a wasteful number, since it uses less digits than its factorization.

1728308016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333591 (or 1333576 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1728308016 is about 41572.9240732475. The cubic root of 1728308016 is about 1200.0712957640.

The spelling of 1728308016 in words is "one billion, seven hundred twenty-eight million, three hundred eight thousand, sixteen".