246438421 has 2 divisors, whose sum is σ = 246438422. Its totient is φ = 246438420.

The previous prime is 246438407. The next prime is 246438469. The reversal of 246438421 is 124834642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183060900 + 63377521 = 13530^2 + 7961^2 .

It is a cyclic number.

It is not a de Polignac number, because 246438421 - 2¹¹ = 246436373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246438481) 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 as a sum of consecutive naturals, namely, 123219210 + 123219211.

It is an arithmetic number, because the mean of its divisors is an integer number (123219211).

Almost surely, 2^246438421 is an apocalyptic number.

It is an amenable number.

246438421 is a deficient number, since it is larger than the sum of its proper divisors (1).

246438421 is an equidigital number, since it uses as much as digits as its factorization.

246438421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 34.

The square root of 246438421 is about 15698.3572707465. The cubic root of 246438421 is about 626.9546663940.

The spelling of 246438421 in words is "two hundred forty-six million, four hundred thirty-eight thousand, four hundred twenty-one".