300400213 has 2 divisors, whose sum is σ = 300400214. Its totient is φ = 300400212.

The previous prime is 300400201. The next prime is 300400229. The reversal of 300400213 is 312004003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211324369 + 89075844 = 14537^2 + 9438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-300400213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 300400193 and 300400202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300400283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150200106 + 150200107.

It is an arithmetic number, because the mean of its divisors is an integer number (150200107).

Almost surely, 2^300400213 is an apocalyptic number.

It is an amenable number.

300400213 is a deficient number, since it is larger than the sum of its proper divisors (1).

300400213 is an equidigital number, since it uses as much as digits as its factorization.

300400213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 300400213 is about 17332.0573793188. The cubic root of 300400213 is about 669.7305019937.

Adding to 300400213 its reverse (312004003), we get a palindrome (612404216).

The spelling of 300400213 in words is "three hundred million, four hundred thousand, two hundred thirteen".