20371064 has 48 divisors (see below), whose sum is σ = 44849880. Its totient is φ = 8648640.

The previous prime is 20371051. The next prime is 20371073. The reversal of 20371064 is 46017302.

It is a super-3 number, since 3×20371064³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61379 + ... + 61709.

Almost surely, 2^20371064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20371064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22424940).

20371064 is an abundant number, since it is smaller than the sum of its proper divisors (24478816).

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

20371064 is a wasteful number, since it uses less digits than its factorization.

20371064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20371064 is about 4513.4315105028. The cubic root of 20371064 is about 273.1101900133.

Adding to 20371064 its reverse (46017302), we get a palindrome (66388366).

The spelling of 20371064 in words is "twenty million, three hundred seventy-one thousand, sixty-four".