20263064 has 8 divisors (see below), whose sum is σ = 37993260. Its totient is φ = 10131528.

The previous prime is 20263049. The next prime is 20263073. The reversal of 20263064 is 46036202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266434 + ... + 1266449.

Almost surely, 2^20263064 is an apocalyptic number.

It is an amenable number.

20263064 is a deficient number, since it is larger than the sum of its proper divisors (17730196).

20263064 is a wasteful number, since it uses less digits than its factorization.

20263064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532889 (or 2532885 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20263064 is about 4501.4513215184. The cubic root of 20263064 is about 272.6266908022.

Adding to 20263064 its reverse (46036202), we get a palindrome (66299266).

The spelling of 20263064 in words is "twenty million, two hundred sixty-three thousand, sixty-four".