233445428 has 24 divisors (see below), whose sum is σ = 441770112. Its totient is φ = 107517824.

The previous prime is 233445413. The next prime is 233445437. The reversal of 233445428 is 824544332.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 33326 + ... + 39717.

It is an arithmetic number, because the mean of its divisors is an integer number (18407088).

Almost surely, 2^233445428 is an apocalyptic number.

It is an amenable number.

233445428 is a deficient number, since it is larger than the sum of its proper divisors (208324684).

233445428 is a wasteful number, since it uses less digits than its factorization.

233445428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73111 (or 73109 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 233445428 is about 15278.9210352040. The cubic root of 233445428 is about 615.7368197443.

The spelling of 233445428 in words is "two hundred thirty-three million, four hundred forty-five thousand, four hundred twenty-eight".