20364576 has 24 divisors (see below), whose sum is σ = 53457264. Its totient is φ = 6788160.

The previous prime is 20364571. The next prime is 20364649. The reversal of 20364576 is 67546302.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (20364571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105970 + ... + 106161.

It is an arithmetic number, because the mean of its divisors is an integer number (2227386).

Almost surely, 2^20364576 is an apocalyptic number.

It is an amenable number.

20364576 is an abundant number, since it is smaller than the sum of its proper divisors (33092688).

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

20364576 is a wasteful number, since it uses less digits than its factorization.

20364576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212144 (or 212136 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 20364576 is about 4512.7127096681. The cubic root of 20364576 is about 273.0811925578.

The spelling of 20364576 in words is "twenty million, three hundred sixty-four thousand, five hundred seventy-six".