405468111 has 16 divisors (see below), whose sum is σ = 559812960. Its totient is φ = 260736000.

The previous prime is 405468097. The next prime is 405468157. The reversal of 405468111 is 111864504.

It is not a de Polignac number, because 405468111 - 2¹³ = 405459919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405468191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133611 + ... + 136611.

It is an arithmetic number, because the mean of its divisors is an integer number (34988310).

Almost surely, 2^405468111 is an apocalyptic number.

405468111 is a deficient number, since it is larger than the sum of its proper divisors (154344849).

405468111 is a wasteful number, since it uses less digits than its factorization.

405468111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 405468111 is about 20136.2387500745. The cubic root of 405468111 is about 740.1485646446.

The spelling of 405468111 in words is "four hundred five million, four hundred sixty-eight thousand, one hundred eleven".