234440221 has 8 divisors (see below), whose sum is σ = 247808000. Its totient is φ = 221175360.

The previous prime is 234440209. The next prime is 234440231. The reversal of 234440221 is 122044432.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234440221 - 2⁵ = 234440189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234440192 and 234440201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234440231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21021 + ... + 30178.

It is an arithmetic number, because the mean of its divisors is an integer number (30976000).

Almost surely, 2^234440221 is an apocalyptic number.

It is an amenable number.

234440221 is a deficient number, since it is larger than the sum of its proper divisors (13367779).

234440221 is a wasteful number, since it uses less digits than its factorization.

234440221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51459.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 234440221 is about 15311.4408531660. The cubic root of 234440221 is about 616.6102039692.

Adding to 234440221 its reverse (122044432), we get a palindrome (356484653).

The spelling of 234440221 in words is "two hundred thirty-four million, four hundred forty thousand, two hundred twenty-one".