201440004 has 48 divisors (see below), whose sum is σ = 503713728. Its totient is φ = 62430208.

The previous prime is 201439933. The next prime is 201440017. The reversal of 201440004 is 400044102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10984 + ... + 22880.

It is an arithmetic number, because the mean of its divisors is an integer number (10494036).

Almost surely, 2^201440004 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 201440004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251856864).

201440004 is an abundant number, since it is smaller than the sum of its proper divisors (302273724).

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

201440004 is a wasteful number, since it uses less digits than its factorization.

201440004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12004 (or 12002 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 201440004 is about 14192.9561402831. The cubic root of 201440004 is about 586.2037249781.

Adding to 201440004 its reverse (400044102), we get a palindrome (601484106).

The spelling of 201440004 in words is "two hundred one million, four hundred forty thousand, four".