405530241 has 16 divisors (see below), whose sum is σ = 552904704. Its totient is φ = 264269264.

The previous prime is 405530239. The next prime is 405530263. The reversal of 405530241 is 142035504.

It is a cyclic number.

It is not a de Polignac number, because 405530241 - 2¹ = 405530239 is a prime.

It is a super-3 number, since 3×405530241³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (405530141) 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 in 15 ways as a sum of consecutive naturals, for example, 166156 + ... + 168578.

It is an arithmetic number, because the mean of its divisors is an integer number (34556544).

Almost surely, 2^405530241 is an apocalyptic number.

It is an amenable number.

405530241 is a deficient number, since it is larger than the sum of its proper divisors (147374463).

405530241 is a wasteful number, since it uses less digits than its factorization.

405530241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 405530241 is about 20137.7814319254. The cubic root of 405530241 is about 740.1863671092.

Adding to 405530241 its reverse (142035504), we get a palindrome (547565745).

The spelling of 405530241 in words is "four hundred five million, five hundred thirty thousand, two hundred forty-one".