404134440231450 has 96 divisors (see below), whose sum is σ = 1008663185799360. Its totient is φ = 107079996441600.

The previous prime is 404134440231427. The next prime is 404134440231463. The reversal of 404134440231450 is 54132044431404.

It is a junction number, because it is equal to n+sod(n) for n = 404134440231399 and 404134440231408.

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 47 ways as a sum of consecutive naturals, for example, 1011955810 + ... + 1012355090.

It is an arithmetic number, because the mean of its divisors is an integer number (10506908185410).

Almost surely, 2^{404134440231450} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404134440231450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504331592899680).

404134440231450 is an abundant number, since it is smaller than the sum of its proper divisors (604528745567910).

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

404134440231450 is a wasteful number, since it uses less digits than its factorization.

404134440231450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442432 (or 442427 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 404134440231450 its reverse (54132044431404), we get a palindrome (458266484662854).

The spelling of 404134440231450 in words is "four hundred four trillion, one hundred thirty-four billion, four hundred forty million, two hundred thirty-one thousand, four hundred fifty".