20343126 has 16 divisors (see below), whose sum is σ = 40748400. Its totient is φ = 6770688.

The previous prime is 20343097. The next prime is 20343137. The reversal of 20343126 is 62134302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2410 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (2546775).

Almost surely, 2^20343126 is an apocalyptic number.

20343126 is an abundant number, since it is smaller than the sum of its proper divisors (20405274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20343126 is a wasteful number, since it uses less digits than its factorization.

20343126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20343126 is about 4510.3354642421. The cubic root of 20343126 is about 272.9852801037.

Adding to 20343126 its reverse (62134302), we get a palindrome (82477428).

It can be divided in two parts, 203 and 43126, that multiplied together give a palindrome (8754578).

The spelling of 20343126 in words is "twenty million, three hundred forty-three thousand, one hundred twenty-six".