622306402 has 8 divisors (see below), whose sum is σ = 933914412. Its totient is φ = 311001600.

The previous prime is 622306379. The next prime is 622306457. The reversal of 622306402 is 204603226.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 587626081 + 34680321 = 24241^2 + 5889^2 .

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

It is an unprimeable number.

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, 70599 + ... + 78922.

Almost surely, 2^622306402 is an apocalyptic number.

622306402 is a deficient number, since it is larger than the sum of its proper divisors (311608010).

622306402 is a wasteful number, since it uses less digits than its factorization.

622306402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151604.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 622306402 is about 24946.0698708233. The cubic root of 622306402 is about 853.7579411852.

Adding to 622306402 its reverse (204603226), we get a palindrome (826909628).

The spelling of 622306402 in words is "six hundred twenty-two million, three hundred six thousand, four hundred two".