20109350 has 24 divisors (see below), whose sum is σ = 37523640. Its totient is φ = 8017920.

The previous prime is 20109343. The next prime is 20109377. The reversal of 20109350 is 5390102.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 25766 + ... + 26534.

It is an arithmetic number, because the mean of its divisors is an integer number (1563485).

Almost surely, 2^20109350 is an apocalyptic number.

20109350 is a deficient number, since it is larger than the sum of its proper divisors (17414290).

20109350 is a wasteful number, since it uses less digits than its factorization.

20109350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20109350 is about 4484.3449911888. The cubic root of 20109350 is about 271.9355654033.

Adding to 20109350 its reverse (5390102), we get a palindrome (25499452).

The spelling of 20109350 in words is "twenty million, one hundred nine thousand, three hundred fifty".