20534208 has 28 divisors (see below), whose sum is σ = 54330600. Its totient is φ = 6844672.

The previous prime is 20534207. The next prime is 20534237. The reversal of 20534208 is 80243502.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534207) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 53283 + ... + 53666.

Almost surely, 2^20534208 is an apocalyptic number.

It is an amenable number.

20534208 is an abundant number, since it is smaller than the sum of its proper divisors (33796392).

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

20534208 is a wasteful number, since it uses less digits than its factorization.

20534208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106964 (or 106954 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20534208 is about 4531.4686361046. The cubic root of 20534208 is about 273.8373304076.

The spelling of 20534208 in words is "twenty million, five hundred thirty-four thousand, two hundred eight".