20461044 has 24 divisors (see below), whose sum is σ = 48183520. Its totient is φ = 6757344.

The previous prime is 20461039. The next prime is 20461061. The reversal of 20461044 is 44016402.

It is a self number, because there is not a number n which added to its sum of digits gives 20461044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6514 + ... + 9129.

Almost surely, 2^20461044 is an apocalyptic number.

It is an amenable number.

20461044 is an abundant number, since it is smaller than the sum of its proper divisors (27722476).

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

20461044 is a wasteful number, since it uses less digits than its factorization.

20461044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15759 (or 15757 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20461044 is about 4523.3885528440. The cubic root of 20461044 is about 273.5117131612.

Adding to 20461044 its reverse (44016402), we get a palindrome (64477446).

The spelling of 20461044 in words is "twenty million, four hundred sixty-one thousand, forty-four".