433640041 has 4 divisors (see below), whose sum is σ = 437618500. Its totient is φ = 429661584.

The previous prime is 433640023. The next prime is 433640047. The reversal of 433640041 is 140046334.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140046334 = 2 ⋅70023167.

It can be written as a sum of positive squares in 2 ways, for example, as 214007641 + 219632400 = 14629^2 + 14820^2 .

It is a cyclic number.

It is not a de Polignac number, because 433640041 - 2¹⁷ = 433508969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 433639988 and 433640015.

It is not an unprimeable number, because it can be changed into a prime (433640047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1989066 + ... + 1989283.

It is an arithmetic number, because the mean of its divisors is an integer number (109404625).

Almost surely, 2^433640041 is an apocalyptic number.

It is an amenable number.

433640041 is a deficient number, since it is larger than the sum of its proper divisors (3978459).

433640041 is a wasteful number, since it uses less digits than its factorization.

433640041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978458.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 433640041 is about 20824.0255714403. The cubic root of 433640041 is about 756.9080525406.

Adding to 433640041 its reverse (140046334), we get a palindrome (573686375).

The spelling of 433640041 in words is "four hundred thirty-three million, six hundred forty thousand, forty-one".