404360246440 has 128 divisors (see below), whose sum is σ = 953607997440. Its totient is φ = 154022558976.

The previous prime is 404360246431. The next prime is 404360246443. The reversal of 404360246440 is 44642063404.

It is a self number, because there is not a number n which added to its sum of digits gives 404360246440.

It is not an unprimeable number, because it can be changed into a prime (404360246443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262060309 + ... + 262061851.

It is an arithmetic number, because the mean of its divisors is an integer number (7450062480).

Almost surely, 2^404360246440 is an apocalyptic number.

404360246440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404360246440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476803998720).

404360246440 is an abundant number, since it is smaller than the sum of its proper divisors (549247751000).

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

404360246440 is a wasteful number, since it uses less digits than its factorization.

404360246440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

The spelling of 404360246440 in words is "four hundred four billion, three hundred sixty million, two hundred forty-six thousand, four hundred forty".