416332421 has 2 divisors, whose sum is σ = 416332422. Its totient is φ = 416332420.

The previous prime is 416332391. The next prime is 416332429. The reversal of 416332421 is 124233614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276856321 + 139476100 = 16639^2 + 11810^2 .

It is a cyclic number.

It is not a de Polignac number, because 416332421 - 2¹⁰ = 416331397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416332429) 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, 208166210 + 208166211.

It is an arithmetic number, because the mean of its divisors is an integer number (208166211).

Almost surely, 2^416332421 is an apocalyptic number.

It is an amenable number.

416332421 is a deficient number, since it is larger than the sum of its proper divisors (1).

416332421 is an equidigital number, since it uses as much as digits as its factorization.

416332421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 416332421 is about 20404.2255672691. The cubic root of 416332421 is about 746.7010189827.

The spelling of 416332421 in words is "four hundred sixteen million, three hundred thirty-two thousand, four hundred twenty-one".