234220045 has 4 divisors (see below), whose sum is σ = 281064060. Its totient is φ = 187376032.

The previous prime is 234220013. The next prime is 234220057. The reversal of 234220045 is 540022432.

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 36929929 + 197290116 = 6077^2 + 14046^2 .

It is a cyclic number.

It is not a de Polignac number, because 234220045 - 2⁵ = 234220013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234219998 and 234220025.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23422000 + ... + 23422009.

It is an arithmetic number, because the mean of its divisors is an integer number (70266015).

Almost surely, 2^234220045 is an apocalyptic number.

It is an amenable number.

234220045 is a deficient number, since it is larger than the sum of its proper divisors (46844015).

234220045 is an equidigital number, since it uses as much as digits as its factorization.

234220045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46844014.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 234220045 is about 15304.2492465328. The cubic root of 234220045 is about 616.4171123989.

Adding to 234220045 its reverse (540022432), we get a palindrome (774242477).

The spelling of 234220045 in words is "two hundred thirty-four million, two hundred twenty thousand, forty-five".