20411764 has 48 divisors (see below), whose sum is σ = 40836096. Its totient is φ = 8870400.

The previous prime is 20411723. The next prime is 20411773. The reversal of 20411764 is 46711402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48274 + ... + 48694.

It is an arithmetic number, because the mean of its divisors is an integer number (850752).

Almost surely, 2^20411764 is an apocalyptic number.

It is an amenable number.

20411764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20411764 is a wasteful number, since it uses less digits than its factorization.

20411764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20411764 is about 4517.9380252500. The cubic root of 20411764 is about 273.2919542093.

The spelling of 20411764 in words is "twenty million, four hundred eleven thousand, seven hundred sixty-four".