1728011040 has 96 divisors (see below), whose sum is σ = 6220851840. Its totient is φ = 394973184.

The previous prime is 1728011027. The next prime is 1728011101. The reversal of 1728011040 is 401108271.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1728011040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253785 + ... + 260504.

It is an arithmetic number, because the mean of its divisors is an integer number (64800540).

Almost surely, 2^1728011040 is an apocalyptic number.

1728011040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1728011040 is an abundant number, since it is smaller than the sum of its proper divisors (4492840800).

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

1728011040 is a wasteful number, since it uses less digits than its factorization.

1728011040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514314 (or 514306 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1728011040 is about 41569.3521720029. The cubic root of 1728011040 is about 1200.0025555501.

The spelling of 1728011040 in words is "one billion, seven hundred twenty-eight million, eleven thousand, forty".