201424144 has 30 divisors (see below), whose sum is σ = 400063370. Its totient is φ = 98242560.

The previous prime is 201424129. The next prime is 201424147. The reversal of 201424144 is 441424102.

It can be written as a sum of positive squares in 3 ways, for example, as 5760000 + 195664144 = 2400^2 + 13988^2 .

It is a super-2 number, since 2×201424144² = 81143371572265472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201424147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23152 + ... + 30640.

Almost surely, 2^201424144 is an apocalyptic number.

It is an amenable number.

201424144 is a deficient number, since it is larger than the sum of its proper divisors (198639226).

201424144 is an equidigital number, since it uses as much as digits as its factorization.

201424144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579 (or 7532 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 201424144 is about 14192.3974014259. The cubic root of 201424144 is about 586.1883400249.

Adding to 201424144 its reverse (441424102), we get a palindrome (642848246).

The spelling of 201424144 in words is "two hundred one million, four hundred twenty-four thousand, one hundred forty-four".