20301000 has 128 divisors (see below), whose sum is σ = 64920960. Its totient is φ = 5280000.

The previous prime is 20300999. The next prime is 20301007. The reversal of 20301000 is 10302.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a self number, because there is not a number n which added to its sum of digits gives 20301000.

It is not an unprimeable number, because it can be changed into a prime (20301007) 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 31 ways as a sum of consecutive naturals, for example, 200950 + ... + 201050.

It is an arithmetic number, because the mean of its divisors is an integer number (507195).

Almost surely, 2^20301000 is an apocalyptic number.

20301000 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 20301000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32460480).

20301000 is an abundant number, since it is smaller than the sum of its proper divisors (44619960).

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

20301000 is a wasteful number, since it uses less digits than its factorization.

20301000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 20301000 is about 4505.6631032513. The cubic root of 20301000 is about 272.7967196883.

Adding to 20301000 its reverse (10302), we get a palindrome (20311302).

The spelling of 20301000 in words is "twenty million, three hundred one thousand".