2404233221 has 4 divisors (see below), whose sum is σ = 2589174252. Its totient is φ = 2219292192.

The previous prime is 2404233193. The next prime is 2404233239. The reversal of 2404233221 is 1223324042.

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 156525121 + 2247708100 = 12511^2 + 47410^2 .

It is not a de Polignac number, because 2404233221 - 2¹⁰ = 2404232197 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 (2404233281) 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, 92470496 + ... + 92470521.

It is an arithmetic number, because the mean of its divisors is an integer number (647293563).

Almost surely, 2^2404233221 is an apocalyptic number.

It is an amenable number.

2404233221 is a deficient number, since it is larger than the sum of its proper divisors (184941031).

2404233221 is a wasteful number, since it uses less digits than its factorization.

2404233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184941030.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2404233221 is about 49032.9809516003. The cubic root of 2404233221 is about 1339.6526204682.

Adding to 2404233221 its reverse (1223324042), we get a palindrome (3627557263).

The spelling of 2404233221 in words is "two billion, four hundred four million, two hundred thirty-three thousand, two hundred twenty-one".