20108733 has 8 divisors (see below), whose sum is σ = 26845728. Its totient is φ = 13388784.

The previous prime is 20108731. The next prime is 20108747. The reversal of 20108733 is 33780102.

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

It is not a de Polignac number, because 20108733 - 2¹ = 20108731 is a prime.

It is a super-2 number, since 2×20108733² = 808722285730578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20108731) 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, 1191 + ... + 6452.

It is an arithmetic number, because the mean of its divisors is an integer number (3355716).

Almost surely, 2^20108733 is an apocalyptic number.

It is an amenable number.

20108733 is a deficient number, since it is larger than the sum of its proper divisors (6736995).

20108733 is an equidigital number, since it uses as much as digits as its factorization.

20108733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20108733 is about 4484.2761957756. The cubic root of 20108733 is about 271.9327841770.

Adding to 20108733 its reverse (33780102), we get a palindrome (53888835).

The spelling of 20108733 in words is "twenty million, one hundred eight thousand, seven hundred thirty-three".