402403322 has 4 divisors (see below), whose sum is σ = 603604986. Its totient is φ = 201201660.

The previous prime is 402403321. The next prime is 402403357. The reversal of 402403322 is 223304204.

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

It can be written as a sum of positive squares in only one way, i.e., 275593201 + 126810121 = 16601^2 + 11261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402403294 and 402403303.

It is not an unprimeable number, because it can be changed into a prime (402403321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600829 + ... + 100600832.

Almost surely, 2^402403322 is an apocalyptic number.

402403322 is a deficient number, since it is larger than the sum of its proper divisors (201201664).

402403322 is a wasteful number, since it uses less digits than its factorization.

402403322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201201663.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402403322 is about 20059.9930707864. The cubic root of 402403322 is about 738.2790064888.

Adding to 402403322 its reverse (223304204), we get a palindrome (625707526).

The spelling of 402403322 in words is "four hundred two million, four hundred three thousand, three hundred twenty-two".