20031064 has 8 divisors (see below), whose sum is σ = 37558260. Its totient is φ = 10015528.

The previous prime is 20031059. The next prime is 20031101. The reversal of 20031064 is 46013002.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251934 + ... + 1251949.

Almost surely, 2^20031064 is an apocalyptic number.

It is an amenable number.

20031064 is a deficient number, since it is larger than the sum of its proper divisors (17527196).

20031064 is a wasteful number, since it uses less digits than its factorization.

20031064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503889 (or 2503885 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20031064 is about 4475.6076682390. The cubic root of 20031064 is about 271.5822234109.

Adding to 20031064 its reverse (46013002), we get a palindrome (66044066).

The spelling of 20031064 in words is "twenty million, thirty-one thousand, sixty-four".