406604040024 has 64 divisors (see below), whose sum is σ = 1251089360640. Its totient is φ = 107236229760.

The previous prime is 406604039993. The next prime is 406604040049. The reversal of 406604040024 is 420040406604.

It is a junction number, because it is equal to n+sod(n) for n = 406604039973 and 406604040000.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 93084822 + ... + 93089189.

It is an arithmetic number, because the mean of its divisors is an integer number (19548271260).

Almost surely, 2^406604040024 is an apocalyptic number.

It is an amenable number.

406604040024 is an abundant number, since it is smaller than the sum of its proper divisors (844485320616).

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

406604040024 is a wasteful number, since it uses less digits than its factorization.

406604040024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186174040 (or 186174036 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 406604040024 its reverse (420040406604), we get a palindrome (826644446628).

The spelling of 406604040024 in words is "four hundred six billion, six hundred four million, forty thousand, twenty-four".