201888140 has 24 divisors (see below), whose sum is σ = 438585840. Its totient is φ = 77970368.

The previous prime is 201888131. The next prime is 201888163. The reversal of 201888140 is 41888102.

It is a junction number, because it is equal to n+sod(n) for n = 201888097 and 201888106.

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, 173462 + ... + 174621.

It is an arithmetic number, because the mean of its divisors is an integer number (18274410).

Almost surely, 2^201888140 is an apocalyptic number.

201888140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201888140 is an abundant number, since it is smaller than the sum of its proper divisors (236697700).

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

201888140 is a wasteful number, since it uses less digits than its factorization.

201888140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348121 (or 348119 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 201888140 is about 14208.7346375390. The cubic root of 201888140 is about 586.6381048136.

The spelling of 201888140 in words is "two hundred one million, eight hundred eighty-eight thousand, one hundred forty".