201444740 has 24 divisors (see below), whose sum is σ = 483467712. Its totient is φ = 69066720.

The previous prime is 201444709. The next prime is 201444743. The reversal of 201444740 is 47444102.

It is not an unprimeable number, because it can be changed into a prime (201444743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719306 + ... + 719585.

It is an arithmetic number, because the mean of its divisors is an integer number (20144488).

Almost surely, 2^201444740 is an apocalyptic number.

201444740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201444740 is an abundant number, since it is smaller than the sum of its proper divisors (282022972).

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

201444740 is a wasteful number, since it uses less digits than its factorization.

201444740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438907 (or 1438905 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 201444740 is about 14193.1229826279. The cubic root of 201444740 is about 586.2083189664.

Adding to 201444740 its reverse (47444102), we get a palindrome (248888842).

The spelling of 201444740 in words is "two hundred one million, four hundred forty-four thousand, seven hundred forty".