102620650 has 24 divisors (see below), whose sum is σ = 208227744. Its totient is φ = 37316400.

The previous prime is 102620629. The next prime is 102620711. The reversal of 102620650 is 56026201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 92742 + ... + 93841.

It is an arithmetic number, because the mean of its divisors is an integer number (8676156).

Almost surely, 2^102620650 is an apocalyptic number.

102620650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102620650 is an abundant number, since it is smaller than the sum of its proper divisors (105607094).

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

102620650 is a wasteful number, since it uses less digits than its factorization.

102620650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186606 (or 186601 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 102620650 is about 10130.1850920899. The cubic root of 102620650 is about 468.1786306435.

Adding to 102620650 its reverse (56026201), we get a palindrome (158646851).

The spelling of 102620650 in words is "one hundred two million, six hundred twenty thousand, six hundred fifty".