20759234 has 4 divisors (see below), whose sum is σ = 31138854. Its totient is φ = 10379616.

The previous prime is 20759231. The next prime is 20759251. The reversal of 20759234 is 43295702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 7546009 = 3635^2 + 2747^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20759234.

It is not an unprimeable number, because it can be changed into a prime (20759231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5189807 + ... + 5189810.

Almost surely, 2^20759234 is an apocalyptic number.

20759234 is a deficient number, since it is larger than the sum of its proper divisors (10379620).

20759234 is a wasteful number, since it uses less digits than its factorization.

20759234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379619.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20759234 is about 4556.2302400120. The cubic root of 20759234 is about 274.8339890595.

The spelling of 20759234 in words is "twenty million, seven hundred fifty-nine thousand, two hundred thirty-four".