201444144 has 40 divisors (see below), whose sum is σ = 567707712. Its totient is φ = 61043520.

The previous prime is 201444127. The next prime is 201444163. The reversal of 201444144 is 441444102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190234 + ... + 191289.

Almost surely, 2^201444144 is an apocalyptic number.

201444144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201444144 is an abundant number, since it is smaller than the sum of its proper divisors (366263568).

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

201444144 is a wasteful number, since it uses less digits than its factorization.

201444144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381545 (or 381539 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 201444144 is about 14193.1019865285. The cubic root of 201444144 is about 586.2077408418.

Adding to 201444144 its reverse (441444102), we get a palindrome (642888246).

The spelling of 201444144 in words is "two hundred one million, four hundred forty-four thousand, one hundred forty-four".