424440401 has 24 divisors (see below), whose sum is σ = 551178144. Its totient is φ = 323023680.

The previous prime is 424440397. The next prime is 424440403. The reversal of 424440401 is 104044424.

It is not a de Polignac number, because 424440401 - 2² = 424440397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424440403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14021 + ... + 32333.

It is an arithmetic number, because the mean of its divisors is an integer number (22965756).

Almost surely, 2^424440401 is an apocalyptic number.

It is an amenable number.

424440401 is a deficient number, since it is larger than the sum of its proper divisors (126737743).

424440401 is a wasteful number, since it uses less digits than its factorization.

424440401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18381 (or 18374 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 424440401 is about 20601.9513881574. The cubic root of 424440401 is about 751.5171665013.

Adding to 424440401 its reverse (104044424), we get a palindrome (528484825).

The spelling of 424440401 in words is "four hundred twenty-four million, four hundred forty thousand, four hundred one".