234421535 has 12 divisors (see below), whose sum is σ = 290678904. Its totient is φ = 181483920.

The previous prime is 234421531. The next prime is 234421541. The reversal of 234421535 is 535124432.

It is a happy number.

It is not a de Polignac number, because 234421535 - 2² = 234421531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234421498 and 234421507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234421531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19589 + ... + 29198.

It is an arithmetic number, because the mean of its divisors is an integer number (24223242).

Almost surely, 2^234421535 is an apocalyptic number.

234421535 is a deficient number, since it is larger than the sum of its proper divisors (56257369).

234421535 is an equidigital number, since it uses as much as digits as its factorization.

234421535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48854 (or 48823 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 234421535 is about 15310.8306436979. The cubic root of 234421535 is about 616.5938212792.

Adding to 234421535 its reverse (535124432), we get a palindrome (769545967).

The spelling of 234421535 in words is "two hundred thirty-four million, four hundred twenty-one thousand, five hundred thirty-five".