234454021 has 8 divisors (see below), whose sum is σ = 249635520. Its totient is φ = 219427008.

The previous prime is 234454007. The next prime is 234454043. The reversal of 234454021 is 120454432.

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 234454021 - 2⁹ = 234453509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234454421) 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, 35481 + ... + 41566.

It is an arithmetic number, because the mean of its divisors is an integer number (31204440).

Almost surely, 2^234454021 is an apocalyptic number.

It is an amenable number.

234454021 is a deficient number, since it is larger than the sum of its proper divisors (15181499).

234454021 is a wasteful number, since it uses less digits than its factorization.

234454021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77243.

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

The square root of 234454021 is about 15311.8914899499. The cubic root of 234454021 is about 616.6223023680.

It can be divided in two parts, 2344 and 54021, that added together give a palindrome (56365).

The spelling of 234454021 in words is "two hundred thirty-four million, four hundred fifty-four thousand, twenty-one".