102388636 has 18 divisors (see below), whose sum is σ = 208434408. Its totient is φ = 43880760.

The previous prime is 102388631. The next prime is 102388639. The reversal of 102388636 is 636883201.

It is a junction number, because it is equal to n+sod(n) for n = 102388595 and 102388604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102388631) 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 5 ways as a sum of consecutive naturals, for example, 261000 + ... + 261391.

Almost surely, 2^102388636 is an apocalyptic number.

It is an amenable number.

102388636 is an abundant number, since it is smaller than the sum of its proper divisors (106045772).

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

102388636 is a wasteful number, since it uses less digits than its factorization.

102388636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522409 (or 522400 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 102388636 is about 10118.7269950325. The cubic root of 102388636 is about 467.8255309438.

The spelling of 102388636 in words is "one hundred two million, three hundred eighty-eight thousand, six hundred thirty-six".