405540432341 has 12 divisors (see below), whose sum is σ = 447672479436. Its totient is φ = 367090806720.

The previous prime is 405540432329. The next prime is 405540432347. The reversal of 405540432341 is 143234045504.

It can be written as a sum of positive squares in 2 ways, for example, as 170964883441 + 234575548900 = 413479^2 + 484330^2 .

It is not a de Polignac number, because 405540432341 - 2¹⁴ = 405540415957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405540432347) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7164026 + ... + 7220411.

It is an arithmetic number, because the mean of its divisors is an integer number (37306039953).

Almost surely, 2^405540432341 is an apocalyptic number.

It is an amenable number.

405540432341 is a deficient number, since it is larger than the sum of its proper divisors (42132047095).

405540432341 is a wasteful number, since it uses less digits than its factorization.

405540432341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14384692 (or 14384681 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 405540432341 its reverse (143234045504), we get a palindrome (548774477845).

The spelling of 405540432341 in words is "four hundred five billion, five hundred forty million, four hundred thirty-two thousand, three hundred forty-one".