20135738 has 8 divisors (see below), whose sum is σ = 34518432. Its totient is φ = 8629596.

The previous prime is 20135737. The next prime is 20135749. The reversal of 20135738 is 83753102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20135738.

It is not an unprimeable number, because it can be changed into a prime (20135737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719120 + ... + 719147.

It is an arithmetic number, because the mean of its divisors is an integer number (4314804).

Almost surely, 2^20135738 is an apocalyptic number.

20135738 is a deficient number, since it is larger than the sum of its proper divisors (14382694).

20135738 is a wasteful number, since it uses less digits than its factorization.

20135738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438276.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20135738 is about 4487.2862623194. The cubic root of 20135738 is about 272.0544603322.

The spelling of 20135738 in words is "twenty million, one hundred thirty-five thousand, seven hundred thirty-eight".