20350304 has 72 divisors (see below), whose sum is σ = 44824752. Its totient is φ = 9085440.

The previous prime is 20350289. The next prime is 20350367. The reversal of 20350304 is 40305302.

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, 286589 + ... + 286659.

It is an arithmetic number, because the mean of its divisors is an integer number (622566).

Almost surely, 2^20350304 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 20350304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22412376).

20350304 is an abundant number, since it is smaller than the sum of its proper divisors (24474448).

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

20350304 is a wasteful number, since it uses less digits than its factorization.

20350304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 20350304 is about 4511.1311220136. The cubic root of 20350304 is about 273.0173836247.

Adding to 20350304 its reverse (40305302), we get a palindrome (60655606).

The spelling of 20350304 in words is "twenty million, three hundred fifty thousand, three hundred four".