20713262 has 4 divisors (see below), whose sum is σ = 31069896. Its totient is φ = 10356630.

The previous prime is 20713261. The next prime is 20713289. The reversal of 20713262 is 26231702.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20713261) 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 as a sum of consecutive naturals, namely, 5178314 + ... + 5178317.

It is an arithmetic number, because the mean of its divisors is an integer number (7767474).

Almost surely, 2^20713262 is an apocalyptic number.

20713262 is a deficient number, since it is larger than the sum of its proper divisors (10356634).

20713262 is a wasteful number, since it uses less digits than its factorization.

20713262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356633.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20713262 is about 4551.1824837068. The cubic root of 20713262 is about 274.6309628421.

Adding to 20713262 its reverse (26231702), we get a palindrome (46944964).

The spelling of 20713262 in words is "twenty million, seven hundred thirteen thousand, two hundred sixty-two".