331433441 has 4 divisors (see below), whose sum is σ = 331546884. Its totient is φ = 331320000.

The previous prime is 331433429. The next prime is 331433449. The reversal of 331433441 is 144334133.

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: 144334133 = 47 ⋅3070939.

It can be written as a sum of positive squares in 2 ways, for example, as 114490000 + 216943441 = 10700^2 + 14729^2 .

It is a cyclic number.

It is not a de Polignac number, because 331433441 - 2¹⁰ = 331432417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331433441.

It is not an unprimeable number, because it can be changed into a prime (331433449) 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 3 ways as a sum of consecutive naturals, for example, 52220 + ... + 58221.

It is an arithmetic number, because the mean of its divisors is an integer number (82886721).

Almost surely, 2^331433441 is an apocalyptic number.

It is an amenable number.

331433441 is a deficient number, since it is larger than the sum of its proper divisors (113443).

331433441 is a wasteful number, since it uses less digits than its factorization.

331433441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113442.

The product of its digits is 5184, while the sum is 26.

The square root of 331433441 is about 18205.3135375362. The cubic root of 331433441 is about 692.0414518756.

Adding to 331433441 its reverse (144334133), we get a palindrome (475767574).

The spelling of 331433441 in words is "three hundred thirty-one million, four hundred thirty-three thousand, four hundred forty-one".