1728474 has 16 divisors (see below), whose sum is σ = 3771360. Its totient is φ = 523760.

The previous prime is 1728457. The next prime is 1728481. The reversal of 1728474 is 4748271.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13029 + ... + 13160.

It is an arithmetic number, because the mean of its divisors is an integer number (235710).

2^1728474 is an apocalyptic number.

1728474 is an abundant number, since it is smaller than the sum of its proper divisors (2042886).

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

1728474 is a wasteful number, since it uses less digits than its factorization.

1728474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26205.

The product of its digits is 12544, while the sum is 33.

The square root of 1728474 is about 1314.7144176588. The cubic root of 1728474 is about 120.0109712191.

It can be divided in two parts, 172 and 8474, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 1728474 in words is "one million, seven hundred twenty-eight thousand, four hundred seventy-four".