20411420 has 24 divisors (see below), whose sum is σ = 44024064. Its totient is φ = 7943616.

The previous prime is 20411411. The next prime is 20411431. The reversal of 20411420 is 2411402.

It is a junction number, because it is equal to n+sod(n) for n = 20411395 and 20411404.

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, 13052 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (1834336).

Almost surely, 2^20411420 is an apocalyptic number.

20411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20411420 is an abundant number, since it is smaller than the sum of its proper divisors (23612644).

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

20411420 is a wasteful number, since it uses less digits than its factorization.

20411420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27629 (or 27627 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20411420 is about 4517.8999546249. The cubic root of 20411420 is about 273.2904189352.

Adding to 20411420 its reverse (2411402), we get a palindrome (22822822).

The spelling of 20411420 in words is "twenty million, four hundred eleven thousand, four hundred twenty".