321418441 has 2 divisors, whose sum is σ = 321418442. Its totient is φ = 321418440.

The previous prime is 321418423. The next prime is 321418463. The reversal of 321418441 is 144814123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309619216 + 11799225 = 17596^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 321418441 - 2¹³ = 321410249 is a prime.

It is not a weakly prime, because it can be changed into another prime (321418411) 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, 160709220 + 160709221.

It is an arithmetic number, because the mean of its divisors is an integer number (160709221).

Almost surely, 2^321418441 is an apocalyptic number.

It is an amenable number.

321418441 is a deficient number, since it is larger than the sum of its proper divisors (1).

321418441 is an equidigital number, since it uses as much as digits as its factorization.

321418441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 321418441 is about 17928.1466136352. The cubic root of 321418441 is about 684.9995140920. Note that the first 3 decimals are identical.

The spelling of 321418441 in words is "three hundred twenty-one million, four hundred eighteen thousand, four hundred forty-one".