201440404 has 24 divisors (see below), whose sum is σ = 385441056. Its totient is φ = 91356000.

The previous prime is 201440389. The next prime is 201440443. The reversal of 201440404 is 404044102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15319 + ... + 25249.

It is an arithmetic number, because the mean of its divisors is an integer number (16060044).

Almost surely, 2^201440404 is an apocalyptic number.

It is an amenable number.

201440404 is a deficient number, since it is larger than the sum of its proper divisors (184000652).

201440404 is a wasteful number, since it uses less digits than its factorization.

201440404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407 (or 10405 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 201440404 is about 14192.9702317732. The cubic root of 201440404 is about 586.2041129867.

Adding to 201440404 its reverse (404044102), we get a palindrome (605484506).

The spelling of 201440404 in words is "two hundred one million, four hundred forty thousand, four hundred four".