20040933 has 8 divisors (see below), whose sum is σ = 29150496. Its totient is φ = 12146000.

The previous prime is 20040929. The next prime is 20040959. The reversal of 20040933 is 33904002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20040933 - 2² = 20040929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040913) by changing a digit.

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, 303618 + ... + 303683.

It is an arithmetic number, because the mean of its divisors is an integer number (3643812).

Almost surely, 2^20040933 is an apocalyptic number.

It is an amenable number.

20040933 is a deficient number, since it is larger than the sum of its proper divisors (9109563).

20040933 is a wasteful number, since it uses less digits than its factorization.

20040933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607315.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 20040933 is about 4476.7100643218. The cubic root of 20040933 is about 271.6268175625.

Adding to 20040933 its reverse (33904002), we get a palindrome (53944935).

The spelling of 20040933 in words is "twenty million, forty thousand, nine hundred thirty-three".