20441420 has 12 divisors (see below), whose sum is σ = 42927024. Its totient is φ = 8176560.

The previous prime is 20441419. The next prime is 20441437. The reversal of 20441420 is 2414402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511016 + ... + 511055.

It is an arithmetic number, because the mean of its divisors is an integer number (3577252).

Almost surely, 2^20441420 is an apocalyptic number.

20441420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20441420 is an abundant number, since it is smaller than the sum of its proper divisors (22485604).

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

20441420 is a wasteful number, since it uses less digits than its factorization.

20441420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022080 (or 1022078 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20441420 is about 4521.2188622096. The cubic root of 20441420 is about 273.4242443316.

Adding to 20441420 its reverse (2414402), we get a palindrome (22855822).

The spelling of 20441420 in words is "twenty million, four hundred forty-one thousand, four hundred twenty".