20461130 has 16 divisors (see below), whose sum is σ = 37380960. Its totient is φ = 8062032.

The previous prime is 20461093. The next prime is 20461139. The reversal of 20461130 is 3116402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20461099 and 20461108.

It is not an unprimeable number, because it can be changed into a prime (20461139) 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 7 ways as a sum of consecutive naturals, for example, 14600 + ... + 15939.

It is an arithmetic number, because the mean of its divisors is an integer number (2336310).

Almost surely, 2^20461130 is an apocalyptic number.

20461130 is a deficient number, since it is larger than the sum of its proper divisors (16919830).

20461130 is a wasteful number, since it uses less digits than its factorization.

20461130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30613.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20461130 is about 4523.3980589818. The cubic root of 20461130 is about 273.5120963605.

Adding to 20461130 its reverse (3116402), we get a palindrome (23577532).

The spelling of 20461130 in words is "twenty million, four hundred sixty-one thousand, one hundred thirty".