201878808 has 128 divisors (see below), whose sum is σ = 563397120. Its totient is φ = 59996160.

The previous prime is 201878801. The next prime is 201878813. The reversal of 201878808 is 808878102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201878808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201878801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648973 + ... + 649283.

It is an arithmetic number, because the mean of its divisors is an integer number (4401540).

Almost surely, 2^201878808 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 201878808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281698560).

201878808 is an abundant number, since it is smaller than the sum of its proper divisors (361518312).

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

201878808 is a wasteful number, since it uses less digits than its factorization.

201878808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 42.

The square root of 201878808 is about 14208.4062441922. The cubic root of 201878808 is about 586.6290658293.

The spelling of 201878808 in words is "two hundred one million, eight hundred seventy-eight thousand, eight hundred eight".