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BaseRepresentation
bin1101010000000101101
3211001122021
41222000231
5102343341
613150141
73455644
oct1520055
9731567
10434221
11277267
1218b351
13122848
14b435b
15889d1
hex6a02d

434221 has 2 divisors, whose sum is σ = 434222. Its totient is φ = 434220.

The previous prime is 434209. The next prime is 434237. The reversal of 434221 is 122434.

It is an a-pointer prime, because the next prime (434237) can be obtained adding 434221 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236196 + 198025 = 486^2 + 445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-434221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434195 and 434204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217110 + 217111.

It is an arithmetic number, because the mean of its divisors is an integer number (217111).

2434221 is an apocalyptic number.

It is an amenable number.

434221 is a deficient number, since it is larger than the sum of its proper divisors (1).

434221 is an equidigital number, since it uses as much as digits as its factorization.

434221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 16.

The square root of 434221 is about 658.9544749070. The cubic root of 434221 is about 75.7245918263.

Adding to 434221 its reverse (122434), we get a palindrome (556655).

It can be divided in two parts, 43 and 4221, that multiplied together give a triangular number (181503 = T602).

The spelling of 434221 in words is "four hundred thirty-four thousand, two hundred twenty-one".