20414556 has 36 divisors (see below), whose sum is σ = 52865904. Its totient is φ = 6638400.

The previous prime is 20414549. The next prime is 20414557. The reversal of 20414556 is 65541402.

20414556 is a `hidden beast` number, since 204 + 1 + 455 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20414557) 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 11 ways as a sum of consecutive naturals, for example, 5440 + ... + 8391.

Almost surely, 2^20414556 is an apocalyptic number.

It is an amenable number.

20414556 is an abundant number, since it is smaller than the sum of its proper divisors (32451348).

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

20414556 is a wasteful number, since it uses less digits than its factorization.

20414556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13882 (or 13877 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 20414556 is about 4518.2470052001. The cubic root of 20414556 is about 273.3044142846.

Adding to 20414556 its reverse (65541402), we get a palindrome (85955958).

The spelling of 20414556 in words is "twenty million, four hundred fourteen thousand, five hundred fifty-six".