402424330241 has 4 divisors (see below), whose sum is σ = 402444134484. Its totient is φ = 402404526000.

The previous prime is 402424330237. The next prime is 402424330277. The reversal of 402424330241 is 142033424204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 282275439616 + 120148890625 = 531296^2 + 346625^2 .

It is a cyclic number.

It is not a de Polignac number, because 402424330241 - 2² = 402424330237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402424330201) 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, 9871610 + ... + 9912291.

It is an arithmetic number, because the mean of its divisors is an integer number (100611033621).

Almost surely, 2^402424330241 is an apocalyptic number.

It is an amenable number.

402424330241 is a deficient number, since it is larger than the sum of its proper divisors (19804243).

402424330241 is a wasteful number, since it uses less digits than its factorization.

402424330241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19804242.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402424330241 its reverse (142033424204), we get a palindrome (544457754445).

The spelling of 402424330241 in words is "four hundred two billion, four hundred twenty-four million, three hundred thirty thousand, two hundred forty-one".