20045733 has 8 divisors (see below), whose sum is σ = 26757696. Its totient is φ = 13348800.

The previous prime is 20045717. The next prime is 20045777. The reversal of 20045733 is 33754002.

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

It is not a de Polignac number, because 20045733 - 2⁴ = 20045717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148 + ... + 6333.

It is an arithmetic number, because the mean of its divisors is an integer number (3344712).

Almost surely, 2^20045733 is an apocalyptic number.

It is an amenable number.

20045733 is a deficient number, since it is larger than the sum of its proper divisors (6711963).

20045733 is a wasteful number, since it uses less digits than its factorization.

20045733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20045733 is about 4477.2461402072. The cubic root of 20045733 is about 271.6485015936.

Adding to 20045733 its reverse (33754002), we get a palindrome (53799735).

The spelling of 20045733 in words is "twenty million, forty-five thousand, seven hundred thirty-three".