300421025 has 24 divisors (see below), whose sum is σ = 395387640. Its totient is φ = 225653760.

The previous prime is 300421021. The next prime is 300421049. The reversal of 300421025 is 520124003.

It can be written as a sum of positive squares in 12 ways, for example, as 43652449 + 256768576 = 6607^2 + 16024^2 .

It is not a de Polignac number, because 300421025 - 2² = 300421021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 300420994 and 300421012.

It is not an unprimeable number, because it can be changed into a prime (300421021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 300827 + ... + 301823.

It is an arithmetic number, because the mean of its divisors is an integer number (16474485).

Almost surely, 2^300421025 is an apocalyptic number.

It is an amenable number.

300421025 is a deficient number, since it is larger than the sum of its proper divisors (94966615).

300421025 is a wasteful number, since it uses less digits than its factorization.

300421025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 300421025 is about 17332.6577592705. The cubic root of 300421025 is about 669.7459681493.

Adding to 300421025 its reverse (520124003), we get a palindrome (820545028).

The spelling of 300421025 in words is "three hundred million, four hundred twenty-one thousand, twenty-five".