1623220102 has 16 divisors (see below), whose sum is σ = 2801094912. Its totient is φ = 691057800.

The previous prime is 1623220099. The next prime is 1623220111. The reversal of 1623220102 is 2010223261.

It is a self number, because there is not a number n which added to its sum of digits gives 1623220102.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 381808 + ... + 386035.

It is an arithmetic number, because the mean of its divisors is an integer number (175068432).

Almost surely, 2^1623220102 is an apocalyptic number.

1623220102 is a deficient number, since it is larger than the sum of its proper divisors (1177874810).

1623220102 is a wasteful number, since it uses less digits than its factorization.

1623220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768003.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1623220102 is about 40289.2057752446. The cubic root of 1623220102 is about 1175.2379423361.

Adding to 1623220102 its reverse (2010223261), we get a palindrome (3633443363).

The spelling of 1623220102 in words is "one billion, six hundred twenty-three million, two hundred twenty thousand, one hundred two".