40334221 has 4 divisors (see below), whose sum is σ = 40557244. Its totient is φ = 40111200.

The previous prime is 40334213. The next prime is 40334263. The reversal of 40334221 is 12243304.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8185321 + 32148900 = 2861^2 + 5670^2 .

It is a cyclic number.

It is not a de Polignac number, because 40334221 - 2³ = 40334213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40334291) 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, 111240 + ... + 111601.

It is an arithmetic number, because the mean of its divisors is an integer number (10139311).

Almost surely, 2^40334221 is an apocalyptic number.

It is an amenable number.

40334221 is a deficient number, since it is larger than the sum of its proper divisors (223023).

40334221 is a wasteful number, since it uses less digits than its factorization.

40334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223022.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40334221 is about 6350.9228463271. The cubic root of 40334221 is about 342.9450651084.

Adding to 40334221 its reverse (12243304), we get a palindrome (52577525).

The spelling of 40334221 in words is "forty million, three hundred thirty-four thousand, two hundred twenty-one".