20350120 has 32 divisors (see below), whose sum is σ = 52329600. Its totient is φ = 6977088.

The previous prime is 20350093. The next prime is 20350123. The reversal of 20350120 is 2105302.

It is a self number, because there is not a number n which added to its sum of digits gives 20350120.

It is not an unprimeable number, because it can be changed into a prime (20350123) 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, 36060 + ... + 36619.

It is an arithmetic number, because the mean of its divisors is an integer number (1635300).

Almost surely, 2^20350120 is an apocalyptic number.

20350120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350120 is an abundant number, since it is smaller than the sum of its proper divisors (31979480).

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

20350120 is a wasteful number, since it uses less digits than its factorization.

20350120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72697 (or 72693 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20350120 is about 4511.1107279693. The cubic root of 20350120 is about 273.0165607812.

Adding to 20350120 its reverse (2105302), we get a palindrome (22455422).

The spelling of 20350120 in words is "twenty million, three hundred fifty thousand, one hundred twenty".