201089808 has 120 divisors (see below), whose sum is σ = 587748096. Its totient is φ = 64108800.

The previous prime is 201089807. The next prime is 201089809. The reversal of 201089808 is 808980102.

201089808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201089807) and next prime (201089809).

It is a super-2 number, since 2×201089808² = 80874221762953728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (201089803) 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, 477438 + ... + 477858.

Almost surely, 2^201089808 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 201089808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293874048).

201089808 is an abundant number, since it is smaller than the sum of its proper divisors (386658288).

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

201089808 is a wasteful number, since it uses less digits than its factorization.

201089808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 201089808 is about 14180.6138089999. The cubic root of 201089808 is about 585.8638301021.

The spelling of 201089808 in words is "two hundred one million, eighty-nine thousand, eight hundred eight".