20354130 has 48 divisors (see below), whose sum is σ = 55710720. Its totient is φ = 5141664.

The previous prime is 20354129. The next prime is 20354153. The reversal of 20354130 is 3145302.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 4242 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^20354130 is an apocalyptic number.

20354130 is an abundant number, since it is smaller than the sum of its proper divisors (35356590).

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

20354130 is a wasteful number, since it uses less digits than its factorization.

20354130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11935 (or 11932 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20354130 is about 4511.5551642421. Note that the first 3 decimals coincide. The cubic root of 20354130 is about 273.0344922808.

Adding to 20354130 its reverse (3145302), we get a palindrome (23499432).

The spelling of 20354130 in words is "twenty million, three hundred fifty-four thousand, one hundred thirty".