405241814243 has 12 divisors (see below), whose sum is σ = 499133376072. Its totient is φ = 326917765440.

The previous prime is 405241814221. The next prime is 405241814261. The reversal of 405241814243 is 342418142504.

It is not a de Polignac number, because 405241814243 - 2⁸ = 405241813987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405241814197 and 405241814206.

It is not an unprimeable number, because it can be changed into a prime (405241811243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243241553 + ... + 243243218.

It is an arithmetic number, because the mean of its divisors is an integer number (41594448006).

Almost surely, 2^405241814243 is an apocalyptic number.

405241814243 is a deficient number, since it is larger than the sum of its proper divisors (93891561829).

405241814243 is a wasteful number, since it uses less digits than its factorization.

405241814243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486484802 (or 486484795 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

Adding to 405241814243 its reverse (342418142504), we get a palindrome (747659956747).

The spelling of 405241814243 in words is "four hundred five billion, two hundred forty-one million, eight hundred fourteen thousand, two hundred forty-three".