234042453 has 20 divisors (see below), whose sum is σ = 354417228. Its totient is φ = 153887040.

The previous prime is 234042449. The next prime is 234042461. The reversal of 234042453 is 354240432.

234042453 is a `hidden beast` number, since 234 + 0 + 424 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146095569 + 87946884 = 12087^2 + 9378^2 .

It is not a de Polignac number, because 234042453 - 2² = 234042449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234042433) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13878 + ... + 25703.

Almost surely, 2^234042453 is an apocalyptic number.

It is an amenable number.

234042453 is a deficient number, since it is larger than the sum of its proper divisors (120374775).

234042453 is an equidigital number, since it uses as much as digits as its factorization.

234042453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39666 (or 39657 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 234042453 is about 15298.4460975617. The cubic root of 234042453 is about 616.2612782738.

Adding to 234042453 its reverse (354240432), we get a palindrome (588282885).

The spelling of 234042453 in words is "two hundred thirty-four million, forty-two thousand, four hundred fifty-three".