234457345 has 16 divisors (see below), whose sum is σ = 289947600. Its totient is φ = 181868544.

The previous prime is 234457297. The next prime is 234457351. The reversal of 234457345 is 543754432.

It is a Cunningham number, because it is equal to 15312²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 24671089 + 209786256 = 4967^2 + 14484^2 .

It is a cyclic number.

It is not a de Polignac number, because 234457345 - 2²⁷ = 100239617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55881 + ... + 59929.

It is an arithmetic number, because the mean of its divisors is an integer number (18121725).

Almost surely, 2^234457345 is an apocalyptic number.

It is an amenable number.

234457345 is a deficient number, since it is larger than the sum of its proper divisors (55490255).

234457345 is a wasteful number, since it uses less digits than its factorization.

234457345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404.

The product of its digits is 201600, while the sum is 37.

The square root of 234457345 is about 15312.0000326541. Note that the first 4 decimals coincide. The cubic root of 234457345 is about 616.6252164331.

The spelling of 234457345 in words is "two hundred thirty-four million, four hundred fifty-seven thousand, three hundred forty-five".