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402223 is a prime number
BaseRepresentation
bin1100010001100101111
3202102202011
41202030233
5100332343
612342051
73263443
oct1421457
9672664
10402223
11255218
12174927
13111103
14a6823
157e29d
hex6232f

402223 has 2 divisors, whose sum is σ = 402224. Its totient is φ = 402222.

The previous prime is 402221. The next prime is 402239. The reversal of 402223 is 322204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402223 - 21 = 402221 is a prime.

Together with 402221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201111 + 201112.

It is an arithmetic number, because the mean of its divisors is an integer number (201112).

2402223 is an apocalyptic number.

402223 is a deficient number, since it is larger than the sum of its proper divisors (1).

402223 is an equidigital number, since it uses as much as digits as its factorization.

402223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 402223 is about 634.2105328674. The cubic root of 402223 is about 73.8168712637.

Adding to 402223 its reverse (322204), we get a palindrome (724427).

It can be divided in two parts, 402 and 223, that added together give a 4-th power (625 = 54).

The spelling of 402223 in words is "four hundred two thousand, two hundred twenty-three", and thus it is an iban number.