201540276 has 72 divisors (see below), whose sum is σ = 585836160. Its totient is φ = 57226176.

The previous prime is 201540271. The next prime is 201540293. The reversal of 201540276 is 672045102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201540271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39690 + ... + 44478.

Almost surely, 2^201540276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201540276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292918080).

201540276 is an abundant number, since it is smaller than the sum of its proper divisors (384295884).

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

201540276 is a wasteful number, since it uses less digits than its factorization.

201540276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973 (or 4968 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 201540276 is about 14196.4881572874. The cubic root of 201540276 is about 586.3009748927.

Adding to 201540276 its reverse (672045102), we get a palindrome (873585378).

The spelling of 201540276 in words is "two hundred one million, five hundred forty thousand, two hundred seventy-six".