234220401 has 24 divisors (see below), whose sum is σ = 342225000. Its totient is φ = 154355712.

The previous prime is 234220387. The next prime is 234220417. The reversal of 234220401 is 104022432.

It can be written as a sum of positive squares in 4 ways, for example, as 1962801 + 232257600 = 1401^2 + 15240^2 .

It is not a de Polignac number, because 234220401 - 2⁵ = 234220369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234220601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521425 + ... + 521873.

It is an arithmetic number, because the mean of its divisors is an integer number (14259375).

Almost surely, 2^234220401 is an apocalyptic number.

It is an amenable number.

234220401 is a deficient number, since it is larger than the sum of its proper divisors (108004599).

234220401 is a wasteful number, since it uses less digits than its factorization.

234220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 234220401 is about 15304.2608772851. The cubic root of 234220401 is about 616.4174247040.

Adding to 234220401 its reverse (104022432), we get a palindrome (338242833).

The spelling of 234220401 in words is "two hundred thirty-four million, two hundred twenty thousand, four hundred one".