404340531054345 has 16 divisors (see below), whose sum is σ = 718827610763520. Its totient is φ = 215648283228912.

The previous prime is 404340531054329. The next prime is 404340531054367. The reversal of 404340531054345 is 543450135043404.

404340531054345 is a `hidden beast` number, since 4 + 0 + 4 + 3 + 4 + 0 + 53 + 10 + 543 + 45 = 666.

It is not a de Polignac number, because 404340531054345 - 2⁴ = 404340531054329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404340531054345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497557522289 + ... + 1497557522558.

It is an arithmetic number, because the mean of its divisors is an integer number (44926725672720).

Almost surely, 2^{404340531054345} is an apocalyptic number.

404340531054345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

404340531054345 is a deficient number, since it is larger than the sum of its proper divisors (314487079709175).

404340531054345 is a wasteful number, since it uses less digits than its factorization.

404340531054345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995115044861 (or 2995115044855 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 404340531054345 its reverse (543450135043404), we get a palindrome (947790666097749).

The spelling of 404340531054345 in words is "four hundred four trillion, three hundred forty billion, five hundred thirty-one million, fifty-four thousand, three hundred forty-five".