233645434 has 24 divisors (see below), whose sum is σ = 386032500. Its totient is φ = 105980160.

The previous prime is 233645393. The next prime is 233645473. The reversal of 233645434 is 434546332.

It can be written as a sum of positive squares in 2 ways, for example, as 211789809 + 21855625 = 14553^2 + 4675^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 233645434.

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 11 ways as a sum of consecutive naturals, for example, 186442 + ... + 187690.

Almost surely, 2^233645434 is an apocalyptic number.

233645434 is a deficient number, since it is larger than the sum of its proper divisors (152387066).

233645434 is a wasteful number, since it uses less digits than its factorization.

233645434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2035 counting only the distinct ones).

The product of its digits is 103680, while the sum is 34.

The square root of 233645434 is about 15285.4647950267. The cubic root of 233645434 is about 615.9126151553.

The spelling of 233645434 in words is "two hundred thirty-three million, six hundred forty-five thousand, four hundred thirty-four".