40404211 has 4 divisors (see below), whose sum is σ = 40423624. Its totient is φ = 40384800.

The previous prime is 40404209. The next prime is 40404233. The reversal of 40404211 is 11240404.

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 40404211 - 2¹ = 40404209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40404271) 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, 6150 + ... + 10891.

It is an arithmetic number, because the mean of its divisors is an integer number (10105906).

Almost surely, 2^40404211 is an apocalyptic number.

40404211 is a deficient number, since it is larger than the sum of its proper divisors (19413).

40404211 is a wasteful number, since it uses less digits than its factorization.

40404211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19412.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40404211 is about 6356.4306808145. The cubic root of 40404211 is about 343.1433157443.

Adding to 40404211 its reverse (11240404), we get a palindrome (51644615).

The spelling of 40404211 in words is "forty million, four hundred four thousand, two hundred eleven".