234768021 has 16 divisors (see below), whose sum is σ = 329313600. Its totient is φ = 148550528.

The previous prime is 234768019. The next prime is 234768043. The reversal of 234768021 is 120867432.

It is not a de Polignac number, because 234768021 - 2¹ = 234768019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234768221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17736 + ... + 28001.

It is an arithmetic number, because the mean of its divisors is an integer number (20582100).

Almost surely, 2^234768021 is an apocalyptic number.

It is an amenable number.

234768021 is a deficient number, since it is larger than the sum of its proper divisors (94545579).

234768021 is a wasteful number, since it uses less digits than its factorization.

234768021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45828.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 234768021 is about 15322.1415278674. The cubic root of 234768021 is about 616.8974565744.

The spelling of 234768021 in words is "two hundred thirty-four million, seven hundred sixty-eight thousand, twenty-one".