404010440505425 has 24 divisors (see below), whose sum is σ = 539565244390200. Its totient is φ = 298315249228800.

The previous prime is 404010440505389. The next prime is 404010440505457. The reversal of 404010440505425 is 524505044010404.

It can be written as a sum of positive squares in 12 ways, for example, as 380980586588176 + 23029853917249 = 19518724^2 + 4798943^2 .

It is not a de Polignac number, because 404010440505425 - 2¹² = 404010440501329 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61280546 + ... + 67552395.

It is an arithmetic number, because the mean of its divisors is an integer number (22481885182925).

Almost surely, 2^{404010440505425} is an apocalyptic number.

It is an amenable number.

404010440505425 is a deficient number, since it is larger than the sum of its proper divisors (135554803884775).

404010440505425 is a wasteful number, since it uses less digits than its factorization.

404010440505425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128842613 (or 128842608 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 404010440505425 its reverse (524505044010404), we get a palindrome (928515484515829).

The spelling of 404010440505425 in words is "four hundred four trillion, ten billion, four hundred forty million, five hundred five thousand, four hundred twenty-five".