233643406444 has 12 divisors (see below), whose sum is σ = 467286812944. Its totient is φ = 100132888464.

The previous prime is 233643406411. The next prime is 233643406463. The reversal of 233643406444 is 444604346332.

233643406444 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 233643406444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4172203659 + ... + 4172203714.

Almost surely, 2^233643406444 is an apocalyptic number.

It is an amenable number.

233643406444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233643406444 is a wasteful number, since it uses less digits than its factorization.

233643406444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344407384 (or 8344407382 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 43.

The spelling of 233643406444 in words is "two hundred thirty-three billion, six hundred forty-three million, four hundred six thousand, four hundred forty-four".