201823872 has 32 divisors (see below), whose sum is σ = 536095680. Its totient is φ = 67274496.

The previous prime is 201823849. The next prime is 201823877. The reversal of 201823872 is 278328102.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (201823877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262408 + ... + 263175.

It is an arithmetic number, because the mean of its divisors is an integer number (16752990).

Almost surely, 2^201823872 is an apocalyptic number.

It is an amenable number.

201823872 is an abundant number, since it is smaller than the sum of its proper divisors (334271808).

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

201823872 is an equidigital number, since it uses as much as digits as its factorization.

201823872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525600 (or 525588 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 201823872 is about 14206.4728909043. The cubic root of 201823872 is about 586.5758491192.

The spelling of 201823872 in words is "two hundred one million, eight hundred twenty-three thousand, eight hundred seventy-two".