405315323 has 8 divisors (see below), whose sum is σ = 467804640. Its totient is φ = 343972800.

The previous prime is 405315307. The next prime is 405315329. The reversal of 405315323 is 323513504.

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

It is a cyclic number.

It is not a de Polignac number, because 405315323 - 2⁴ = 405315307 is a prime.

It is a super-2 number, since 2×405315323² = 328561022117188658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405315292 and 405315301.

It is not an unprimeable number, because it can be changed into a prime (405315329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285938 + ... + 287351.

It is an arithmetic number, because the mean of its divisors is an integer number (58475580).

Almost surely, 2^405315323 is an apocalyptic number.

405315323 is a deficient number, since it is larger than the sum of its proper divisors (62489317).

405315323 is a wasteful number, since it uses less digits than its factorization.

405315323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573397.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 405315323 is about 20132.4445361213. Note that the first 3 decimals coincide. The cubic root of 405315323 is about 740.0555856711.

Adding to 405315323 its reverse (323513504), we get a palindrome (728828827).

It can be divided in two parts, 40531 and 5323, that added together give a palindrome (45854).

The spelling of 405315323 in words is "four hundred five million, three hundred fifteen thousand, three hundred twenty-three".