20351036 has 12 divisors (see below), whose sum is σ = 36577128. Its totient is φ = 9900432.

The previous prime is 20351029. The next prime is 20351053. The reversal of 20351036 is 63015302.

It is a junction number, because it is equal to n+sod(n) for n = 20350999 and 20351017.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 68606 + ... + 68901.

It is an arithmetic number, because the mean of its divisors is an integer number (3048094).

Almost surely, 2^20351036 is an apocalyptic number.

It is an amenable number.

20351036 is a deficient number, since it is larger than the sum of its proper divisors (16226092).

20351036 is a wasteful number, since it uses less digits than its factorization.

20351036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137548 (or 137546 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 20351036 is about 4511.2122539291. The cubic root of 20351036 is about 273.0206570620.

Adding to 20351036 its reverse (63015302), we get a palindrome (83366338).

The spelling of 20351036 in words is "twenty million, three hundred fifty-one thousand, thirty-six".