20735046 has 24 divisors (see below), whose sum is σ = 45012240. Its totient is φ = 6898416.

The previous prime is 20735041. The next prime is 20735069. The reversal of 20735046 is 64053702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20735041) 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 in 11 ways as a sum of consecutive naturals, for example, 14416 + ... + 15788.

It is an arithmetic number, because the mean of its divisors is an integer number (1875510).

Almost surely, 2^20735046 is an apocalyptic number.

20735046 is an abundant number, since it is smaller than the sum of its proper divisors (24277194).

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

20735046 is a wasteful number, since it uses less digits than its factorization.

20735046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20735046 is about 4553.5750789901. The cubic root of 20735046 is about 274.7272049638.

Adding to 20735046 its reverse (64053702), we get a palindrome (84788748).

It can be divided in two parts, 207 and 35046, that added together give a palindrome (35253).

The spelling of 20735046 in words is "twenty million, seven hundred thirty-five thousand, forty-six".