622321642 has 32 divisors (see below), whose sum is σ = 978220800. Its totient is φ = 296702208.

The previous prime is 622321627. The next prime is 622321663. The reversal of 622321642 is 246123226.

It is a super-2 number, since 2×622321642² = 774568452203152328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 622321642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610209 + ... + 611227.

It is an arithmetic number, because the mean of its divisors is an integer number (30569400).

Almost surely, 2^622321642 is an apocalyptic number.

622321642 is a deficient number, since it is larger than the sum of its proper divisors (355899158).

622321642 is a wasteful number, since it uses less digits than its factorization.

622321642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230.

The product of its digits is 6912, while the sum is 28.

The square root of 622321642 is about 24946.3753278908. The cubic root of 622321642 is about 853.7649105092.

Adding to 622321642 its reverse (246123226), we get a palindrome (868444868).

The spelling of 622321642 in words is "six hundred twenty-two million, three hundred twenty-one thousand, six hundred forty-two".