405044555231 has 16 divisors (see below), whose sum is σ = 414731778048. Its totient is φ = 395502324000.

The previous prime is 405044555191. The next prime is 405044555233. The reversal of 405044555231 is 132555440504.

It is a cyclic number.

It is not a de Polignac number, because 405044555231 - 2³⁴ = 387864686047 is a prime.

It is a super-2 number, since 2×405044555231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405044555233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2325926 + ... + 2493996.

It is an arithmetic number, because the mean of its divisors is an integer number (25920736128).

Almost surely, 2^405044555231 is an apocalyptic number.

405044555231 is a deficient number, since it is larger than the sum of its proper divisors (9687222817).

405044555231 is a wasteful number, since it uses less digits than its factorization.

405044555231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168502.

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 405044555231 its reverse (132555440504), we get a palindrome (537599995735).

The spelling of 405044555231 in words is "four hundred five billion, forty-four million, five hundred fifty-five thousand, two hundred thirty-one".