405411243 has 8 divisors (see below), whose sum is σ = 549710400. Its totient is φ = 265693128.

The previous prime is 405411229. The next prime is 405411247. The reversal of 405411243 is 342114504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 405411243 - 2¹² = 405407147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405411247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145053 + ... + 1145406.

It is an arithmetic number, because the mean of its divisors is an integer number (68713800).

Almost surely, 2^405411243 is an apocalyptic number.

405411243 is a deficient number, since it is larger than the sum of its proper divisors (144299157).

405411243 is a wasteful number, since it uses less digits than its factorization.

405411243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290521.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 405411243 is about 20134.8266195664. The cubic root of 405411243 is about 740.1139604136.

Adding to 405411243 its reverse (342114504), we get a palindrome (747525747).

The spelling of 405411243 in words is "four hundred five million, four hundred eleven thousand, two hundred forty-three".