1002255622 has 8 divisors (see below), whose sum is σ = 1503777672. Its totient is φ = 500996400.

The previous prime is 1002255601. The next prime is 1002255629. The reversal of 1002255622 is 2265522001.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002255629) by changing a digit.

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, 55879 + ... + 71602.

It is an arithmetic number, because the mean of its divisors is an integer number (187972209).

Almost surely, 2^1002255622 is an apocalyptic number.

1002255622 is a deficient number, since it is larger than the sum of its proper divisors (501522050).

1002255622 is a wasteful number, since it uses less digits than its factorization.

1002255622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131414.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1002255622 is about 31658.4210282193. The cubic root of 1002255622 is about 1000.7513093928.

Adding to 1002255622 its reverse (2265522001), we get a palindrome (3267777623).

The spelling of 1002255622 in words is "one billion, two million, two hundred fifty-five thousand, six hundred twenty-two".