234540445 has 4 divisors (see below), whose sum is σ = 281448540. Its totient is φ = 187632352.

The previous prime is 234540443. The next prime is 234540457. The reversal of 234540445 is 544045432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91642329 + 142898116 = 9573^2 + 11954^2 .

It is a cyclic number.

It is not a de Polignac number, because 234540445 - 2¹ = 234540443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234540443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23454040 + ... + 23454049.

It is an arithmetic number, because the mean of its divisors is an integer number (70362135).

Almost surely, 2^234540445 is an apocalyptic number.

It is an amenable number.

234540445 is a deficient number, since it is larger than the sum of its proper divisors (46908095).

234540445 is an equidigital number, since it uses as much as digits as its factorization.

234540445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46908094.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 234540445 is about 15314.7133502394. The cubic root of 234540445 is about 616.6980591112.

Adding to 234540445 its reverse (544045432), we get a palindrome (778585877).

The spelling of 234540445 in words is "two hundred thirty-four million, five hundred forty thousand, four hundred forty-five".