20743064 has 16 divisors (see below), whose sum is σ = 39192120. Its totient is φ = 10291840.

The previous prime is 20743039. The next prime is 20743081. The reversal of 20743064 is 46034702.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8849 + ... + 10944.

Almost surely, 2^20743064 is an apocalyptic number.

It is an amenable number.

20743064 is a deficient number, since it is larger than the sum of its proper divisors (18449056).

20743064 is a wasteful number, since it uses less digits than its factorization.

20743064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19930 (or 19926 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20743064 is about 4554.4554010331. The cubic root of 20743064 is about 274.7626116671.

Adding to 20743064 its reverse (46034702), we get a palindrome (66777766).

The spelling of 20743064 in words is "twenty million, seven hundred forty-three thousand, sixty-four".