33003947428 has 12 divisors (see below), whose sum is σ = 60268078080. Its totient is φ = 15784496552.

The previous prime is 33003947413. The next prime is 33003947429. The reversal of 33003947428 is 82474930033.

It is not an unprimeable number, because it can be changed into a prime (33003947429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 179369188 + ... + 179369371.

It is an arithmetic number, because the mean of its divisors is an integer number (5022339840).

Almost surely, 2^33003947428 is an apocalyptic number.

It is an amenable number.

33003947428 is a deficient number, since it is larger than the sum of its proper divisors (27264130652).

33003947428 is a wasteful number, since it uses less digits than its factorization.

33003947428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358738586 (or 358738584 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 33003947428 in words is "thirty-three billion, three million, nine hundred forty-seven thousand, four hundred twenty-eight".