404240420046 has 64 divisors (see below), whose sum is σ = 879828160320. Its totient is φ = 123391365120.

The previous prime is 404240420033. The next prime is 404240420117. The reversal of 404240420046 is 640024042404.

It is a junction number, because it is equal to n+sod(n) for n = 404240419995 and 404240420022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5127486 + ... + 5205726.

It is an arithmetic number, because the mean of its divisors is an integer number (13747315005).

Almost surely, 2^404240420046 is an apocalyptic number.

404240420046 is an abundant number, since it is smaller than the sum of its proper divisors (475587740274).

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

404240420046 is an equidigital number, since it uses as much as digits as its factorization.

404240420046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78374 (or 78300 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 404240420046 in words is "four hundred four billion, two hundred forty million, four hundred twenty thousand, forty-six".