20039208 has 64 divisors (see below), whose sum is σ = 57870720. Its totient is φ = 5664000.

The previous prime is 20039207. The next prime is 20039221. The reversal of 20039208 is 80293002.

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

It is not an unprimeable number, because it can be changed into a prime (20039207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16378 + ... + 17558.

It is an arithmetic number, because the mean of its divisors is an integer number (904230).

Almost surely, 2^20039208 is an apocalyptic number.

20039208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20039208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28935360).

20039208 is an abundant number, since it is smaller than the sum of its proper divisors (37831512).

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

20039208 is a wasteful number, since it uses less digits than its factorization.

20039208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20039208 is about 4476.5173963696. The cubic root of 20039208 is about 271.6190240180.

It can be divided in two parts, 2003 and 9208, that added together give a palindrome (11211).

The spelling of 20039208 in words is "twenty million, thirty-nine thousand, two hundred eight".