201728370 has 32 divisors (see below), whose sum is σ = 484522560. Its totient is φ = 53752640.

The previous prime is 201728369. The next prime is 201728381. The reversal of 201728370 is 73827102.

201728370 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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, 70936 + ... + 73724.

It is an arithmetic number, because the mean of its divisors is an integer number (15141330).

Almost surely, 2^201728370 is an apocalyptic number.

201728370 is an abundant number, since it is smaller than the sum of its proper divisors (282794190).

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

201728370 is a wasteful number, since it uses less digits than its factorization.

201728370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 201728370 is about 14203.1112788713. Note that the first 3 decimals coincide. The cubic root of 201728370 is about 586.4833129811.

The spelling of 201728370 in words is "two hundred one million, seven hundred twenty-eight thousand, three hundred seventy".