102636828 has 96 divisors (see below), whose sum is σ = 306790400. Its totient is φ = 29066688.

The previous prime is 102636827. The next prime is 102636881. The reversal of 102636828 is 828636201.

102636828 is a `hidden beast` number, since 10 + 2 + 636 + 8 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 102636792 and 102636801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102636823) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 95478 + ... + 96546.

Almost surely, 2^102636828 is an apocalyptic number.

102636828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102636828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153395200).

102636828 is an abundant number, since it is smaller than the sum of its proper divisors (204153572).

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

102636828 is a wasteful number, since it uses less digits than its factorization.

102636828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 102636828 is about 10130.9835652813. The cubic root of 102636828 is about 468.2032319166.

The spelling of 102636828 in words is "one hundred two million, six hundred thirty-six thousand, eight hundred twenty-eight".