409433 has 2 divisors, whose sum is σ = 409434. Its totient is φ = 409432.

The previous prime is 409429. The next prime is 409441. The reversal of 409433 is 334904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299209 + 110224 = 547^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 409433 - 2² = 409429 is a prime.

It is equal to p₃₄₅₆₅ and since 409433 and 34565 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 409399 and 409408.

It is not a weakly prime, because it can be changed into another prime (409463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204716 + 204717.

It is an arithmetic number, because the mean of its divisors is an integer number (204717).

2⁴⁰⁹⁴³³ is an apocalyptic number.

It is an amenable number.

409433 is a deficient number, since it is larger than the sum of its proper divisors (1).

409433 is an equidigital number, since it uses as much as digits as its factorization.

409433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 409433 is about 639.8695179488. The cubic root of 409433 is about 74.2553269276.

Subtracting from 409433 its reverse (334904), we obtain a square (74529 = 273²).

The spelling of 409433 in words is "four hundred nine thousand, four hundred thirty-three".