20410146 has 12 divisors (see below), whose sum is σ = 44222022. Its totient is φ = 6803376.

The previous prime is 20410139. The next prime is 20410163. The reversal of 20410146 is 64101402.

It can be written as a sum of positive squares in only one way, i.e., 18275625 + 2134521 = 4275^2 + 1461^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1133897 = 20410146 / (2 + 0 + 4 + 1 + 0 + 1 + 4 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566931 + ... + 566966.

Almost surely, 2^20410146 is an apocalyptic number.

20410146 is an abundant number, since it is smaller than the sum of its proper divisors (23811876).

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

20410146 is a wasteful number, since it uses less digits than its factorization.

20410146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133905 (or 1133902 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20410146 is about 4517.7589577134. The cubic root of 20410146 is about 273.2847329150.

Adding to 20410146 its reverse (64101402), we get a palindrome (84511548).

The spelling of 20410146 in words is "twenty million, four hundred ten thousand, one hundred forty-six".