404012340333423 has 40 divisors (see below), whose sum is σ = 639031366214208. Its totient is φ = 253495831965696.

The previous prime is 404012340333421. The next prime is 404012340333451. The reversal of 404012340333423 is 324333043210404.

404012340333423 is a `hidden beast` number, since 4 + 0 + 40 + 123 + 40 + 3 + 33 + 423 = 666.

It is not a de Polignac number, because 404012340333423 - 2¹ = 404012340333421 is a prime.

It is a super-2 number, since 2×404012340333423² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404012340333421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 173603290 + ... + 175915112.

Almost surely, 2^{404012340333423} is an apocalyptic number.

404012340333423 is a deficient number, since it is larger than the sum of its proper divisors (235019025880785).

404012340333423 is a wasteful number, since it uses less digits than its factorization.

404012340333423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438765 (or 2438756 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 36.

Adding to 404012340333423 its reverse (324333043210404), we get a palindrome (728345383543827).

The spelling of 404012340333423 in words is "four hundred four trillion, twelve billion, three hundred forty million, three hundred thirty-three thousand, four hundred twenty-three".