234380645 has 8 divisors (see below), whose sum is σ = 283746456. Its totient is φ = 185844736.

The previous prime is 234380633. The next prime is 234380651. The reversal of 234380645 is 546083432.

It can be written as a sum of positive squares in 4 ways, for example, as 6280036 + 228100609 = 2506^2 + 15103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234380645 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 206852 + ... + 207981.

It is an arithmetic number, because the mean of its divisors is an integer number (35468307).

Almost surely, 2^234380645 is an apocalyptic number.

It is an amenable number.

234380645 is a deficient number, since it is larger than the sum of its proper divisors (49365811).

234380645 is a wasteful number, since it uses less digits than its factorization.

234380645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414951.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 234380645 is about 15309.4952562127. The cubic root of 234380645 is about 616.5579685045.

The spelling of 234380645 in words is "two hundred thirty-four million, three hundred eighty thousand, six hundred forty-five".