1233661344 has 24 divisors (see below), whose sum is σ = 3238361280. Its totient is φ = 411220416.

The previous prime is 1233661343. The next prime is 1233661349. The reversal of 1233661344 is 4431663321.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1233661343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6425224 + ... + 6425415.

It is an arithmetic number, because the mean of its divisors is an integer number (134931720).

Almost surely, 2^1233661344 is an apocalyptic number.

It is an amenable number.

1233661344 is an abundant number, since it is smaller than the sum of its proper divisors (2004699936).

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

1233661344 is a wasteful number, since it uses less digits than its factorization.

1233661344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12850652 (or 12850644 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 1233661344 is about 35123.5155415855. The cubic root of 1233661344 is about 1072.5033371808.

The spelling of 1233661344 in words is "one billion, two hundred thirty-three million, six hundred sixty-one thousand, three hundred forty-four".