235221424 has 20 divisors (see below), whose sum is σ = 456160536. Its totient is φ = 117502592.

The previous prime is 235221421. The next prime is 235221431. The reversal of 235221424 is 424122532.

It is not an unprimeable number, because it can be changed into a prime (235221421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12927 + ... + 25249.

Almost surely, 2^235221424 is an apocalyptic number.

It is an amenable number.

235221424 is a deficient number, since it is larger than the sum of its proper divisors (220939112).

235221424 is a wasteful number, since it uses less digits than its factorization.

235221424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13524 (or 13518 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 235221424 is about 15336.9300709105. The cubic root of 235221424 is about 617.2943352854.

Adding to 235221424 its reverse (424122532), we get a palindrome (659343956).

The spelling of 235221424 in words is "two hundred thirty-five million, two hundred twenty-one thousand, four hundred twenty-four".