201401244424 has 48 divisors (see below), whose sum is σ = 401416570800. Its totient is φ = 94714065504.

The previous prime is 201401244403. The next prime is 201401244437. The reversal of 201401244424 is 424442104102.

It is a happy number.

It is a super-2 number, since 2×201401244424² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201401244392 and 201401244401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150579 + ... + 652285.

It is an arithmetic number, because the mean of its divisors is an integer number (8362845225).

Almost surely, 2^201401244424 is an apocalyptic number.

It is an amenable number.

201401244424 is a deficient number, since it is larger than the sum of its proper divisors (200015326376).

201401244424 is a wasteful number, since it uses less digits than its factorization.

201401244424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501890 (or 501867 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 201401244424 its reverse (424442104102), we get a palindrome (625843348526).

The spelling of 201401244424 in words is "two hundred one billion, four hundred one million, two hundred forty-four thousand, four hundred twenty-four".