1728473166 has 48 divisors (see below), whose sum is σ = 4286906208. Its totient is φ = 493056000.

The previous prime is 1728473141. The next prime is 1728473171. The reversal of 1728473166 is 6613748271.

1728473166 is a `hidden beast` number, since 17 + 2 + 8 + 473 + 166 = 666.

It is a super-3 number, since 3×1728473166³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70066 + ... + 91466.

It is an arithmetic number, because the mean of its divisors is an integer number (89310546).

Almost surely, 2^1728473166 is an apocalyptic number.

1728473166 is an abundant number, since it is smaller than the sum of its proper divisors (2558433042).

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

1728473166 is a wasteful number, since it uses less digits than its factorization.

1728473166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057 (or 22054 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 1728473166 is about 41574.9102945514. The cubic root of 1728473166 is about 1200.1095191710.

The spelling of 1728473166 in words is "one billion, seven hundred twenty-eight million, four hundred seventy-three thousand, one hundred sixty-six".