333420728 has 32 divisors (see below), whose sum is σ = 662871600. Its totient is φ = 156682752.

The previous prime is 333420697. The next prime is 333420739. The reversal of 333420728 is 827024333.

It is a super-2 number, since 2×333420728² = 222338763720099968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 333420694 and 333420703.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 134363 + ... + 136821.

Almost surely, 2^333420728 is an apocalyptic number.

It is an amenable number.

333420728 is a deficient number, since it is larger than the sum of its proper divisors (329450872).

333420728 is a wasteful number, since it uses less digits than its factorization.

333420728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479 (or 3475 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 333420728 is about 18259.8118281652. The cubic root of 333420728 is about 693.4218651331.

The spelling of 333420728 in words is "three hundred thirty-three million, four hundred twenty thousand, seven hundred twenty-eight".