20410420 has 24 divisors (see below), whose sum is σ = 42946848. Its totient is φ = 8148000.

The previous prime is 20410409. The next prime is 20410433. The reversal of 20410420 is 2401402.

It is a self number, because there is not a number n which added to its sum of digits gives 20410420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18895 + ... + 19945.

It is an arithmetic number, because the mean of its divisors is an integer number (1789452).

Almost surely, 2^20410420 is an apocalyptic number.

20410420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20410420 is an abundant number, since it is smaller than the sum of its proper divisors (22536428).

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

20410420 is a wasteful number, since it uses less digits than its factorization.

20410420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20410420 is about 4517.7892823814. The cubic root of 20410420 is about 273.2859558310.

Adding to 20410420 its reverse (2401402), we get a palindrome (22811822).

The spelling of 20410420 in words is "twenty million, four hundred ten thousand, four hundred twenty".