403441481 has 2 divisors, whose sum is σ = 403441482. Its totient is φ = 403441480.

The previous prime is 403441457. The next prime is 403441483. The reversal of 403441481 is 184144304.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286455625 + 116985856 = 16925^2 + 10816^2 .

It is a cyclic number.

It is not a de Polignac number, because 403441481 - 2²⁶ = 336332617 is a prime.

It is a super-2 number, since 2×403441481² = 325530057182946722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 403441483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (403441483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201720740 + 201720741.

It is an arithmetic number, because the mean of its divisors is an integer number (201720741).

Almost surely, 2^403441481 is an apocalyptic number.

It is an amenable number.

403441481 is a deficient number, since it is larger than the sum of its proper divisors (1).

403441481 is an equidigital number, since it uses as much as digits as its factorization.

403441481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 403441481 is about 20085.8527576003. The cubic root of 403441481 is about 738.9133558052.

Adding to 403441481 its reverse (184144304), we get a palindrome (587585785).

The spelling of 403441481 in words is "four hundred three million, four hundred forty-one thousand, four hundred eighty-one".