20301420 has 48 divisors (see below), whose sum is σ = 57576960. Its totient is φ = 5343936.

The previous prime is 20301409. The next prime is 20301517. The reversal of 20301420 is 2410302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20301396 and 20301405.

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 15 ways as a sum of consecutive naturals, for example, 2599 + ... + 6881.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^20301420 is an apocalyptic number.

20301420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20301420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28788480).

20301420 is an abundant number, since it is smaller than the sum of its proper divisors (37275540).

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

20301420 is a wasteful number, since it uses less digits than its factorization.

20301420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374 (or 4372 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20301420 is about 4505.7097110222. The cubic root of 20301420 is about 272.7986009394.

Adding to 20301420 its reverse (2410302), we get a palindrome (22711722).

The spelling of 20301420 in words is "twenty million, three hundred one thousand, four hundred twenty".