20514064 has 40 divisors (see below), whose sum is σ = 41783040. Its totient is φ = 9744000.

The previous prime is 20514061. The next prime is 20514071. The reversal of 20514064 is 46041502.

It is not an unprimeable number, because it can be changed into a prime (20514061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28914 + ... + 29614.

It is an arithmetic number, because the mean of its divisors is an integer number (1044576).

Almost surely, 2^20514064 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 20514064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20891520).

20514064 is an abundant number, since it is smaller than the sum of its proper divisors (21268976).

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

20514064 is a wasteful number, since it uses less digits than its factorization.

20514064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20514064 is about 4529.2454117656. The cubic root of 20514064 is about 273.7477565616.

Adding to 20514064 its reverse (46041502), we get a palindrome (66555566).

The spelling of 20514064 in words is "twenty million, five hundred fourteen thousand, sixty-four".