405054211 has 4 divisors (see below), whose sum is σ = 414933624. Its totient is φ = 395174800.

The previous prime is 405054203. The next prime is 405054229. The reversal of 405054211 is 112450504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405054211 - 2³ = 405054203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405054271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4939645 + ... + 4939726.

It is an arithmetic number, because the mean of its divisors is an integer number (103733406).

Almost surely, 2^405054211 is an apocalyptic number.

405054211 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

405054211 is a deficient number, since it is larger than the sum of its proper divisors (9879413).

405054211 is an equidigital number, since it uses as much as digits as its factorization.

405054211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9879412.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 405054211 is about 20125.9586355532. The cubic root of 405054211 is about 739.8966321406.

The spelling of 405054211 in words is "four hundred five million, fifty-four thousand, two hundred eleven".