102006620 has 12 divisors (see below), whose sum is σ = 214213944. Its totient is φ = 40802640.

The previous prime is 102006607. The next prime is 102006637. The reversal of 102006620 is 26600201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550146 + ... + 2550185.

It is an arithmetic number, because the mean of its divisors is an integer number (17851162).

Almost surely, 2^102006620 is an apocalyptic number.

102006620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102006620 is an abundant number, since it is smaller than the sum of its proper divisors (112207324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102006620 is a wasteful number, since it uses less digits than its factorization.

102006620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100340 (or 5100338 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 102006620 is about 10099.8326718813. The cubic root of 102006620 is about 467.2429807267.

Adding to 102006620 its reverse (26600201), we get a palindrome (128606821).

The spelling of 102006620 in words is "one hundred two million, six thousand, six hundred twenty".