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450421 is a prime number
BaseRepresentation
bin1101101111101110101
3211212212021
41231331311
5103403141
613353141
73554116
oct1557565
9755767
10450421
11288454
121987b1
1312a02a
14ba20d
158d6d1
hex6df75

450421 has 2 divisors, whose sum is σ = 450422. Its totient is φ = 450420.

The previous prime is 450413. The next prime is 450431. The reversal of 450421 is 124054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448900 + 1521 = 670^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 450421 - 23 = 450413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450395 and 450404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225210 + 225211.

It is an arithmetic number, because the mean of its divisors is an integer number (225211).

2450421 is an apocalyptic number.

It is an amenable number.

450421 is a deficient number, since it is larger than the sum of its proper divisors (1).

450421 is an equidigital number, since it uses as much as digits as its factorization.

450421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 450421 is about 671.1341147640. The cubic root of 450421 is about 76.6548332923.

Adding to 450421 its reverse (124054), we get a palindrome (574475).

The spelling of 450421 in words is "four hundred fifty thousand, four hundred twenty-one".