402441322 has 8 divisors (see below), whose sum is σ = 618385572. Its totient is φ = 196312800.

The previous prime is 402441317. The next prime is 402441331. The reversal of 402441322 is 223144204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 402363481 + 77841 = 20059^2 + 279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 402441293 and 402441302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453829 + ... + 2453992.

Almost surely, 2^402441322 is an apocalyptic number.

402441322 is a deficient number, since it is larger than the sum of its proper divisors (215944250).

402441322 is a wasteful number, since it uses less digits than its factorization.

402441322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907864.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402441322 is about 20060.9402072784. The cubic root of 402441322 is about 738.3022449643.

Adding to 402441322 its reverse (223144204), we get a palindrome (625585526).

The spelling of 402441322 in words is "four hundred two million, four hundred forty-one thousand, three hundred twenty-two".