102620424 has 16 divisors (see below), whose sum is σ = 256551120. Its totient is φ = 34206800.

The previous prime is 102620393. The next prime is 102620437. The reversal of 102620424 is 424026201.

It is a self number, because there is not a number n which added to its sum of digits gives 102620424.

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 3 ways as a sum of consecutive naturals, for example, 2137902 + ... + 2137949.

It is an arithmetic number, because the mean of its divisors is an integer number (16034445).

Almost surely, 2^102620424 is an apocalyptic number.

It is an amenable number.

102620424 is an abundant number, since it is smaller than the sum of its proper divisors (153930696).

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

102620424 is a wasteful number, since it uses less digits than its factorization.

102620424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275860 (or 4275856 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 102620424 is about 10130.1739373024. The cubic root of 102620424 is about 468.1782869555.

Adding to 102620424 its reverse (424026201), we get a palindrome (526646625).

The spelling of 102620424 in words is "one hundred two million, six hundred twenty thousand, four hundred twenty-four".