102386988 has 144 divisors (see below), whose sum is σ = 304746624. Its totient is φ = 28638720.

The previous prime is 102386987. The next prime is 102386993. The reversal of 102386988 is 889683201.

It is not an unprimeable number, because it can be changed into a prime (102386981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450931 + ... + 451157.

It is an arithmetic number, because the mean of its divisors is an integer number (2116296).

Almost surely, 2^102386988 is an apocalyptic number.

102386988 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 102386988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152373312).

102386988 is an abundant number, since it is smaller than the sum of its proper divisors (202359636).

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

102386988 is a wasteful number, since it uses less digits than its factorization.

102386988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 102386988 is about 10118.6455615364. The cubic root of 102386988 is about 467.8230209628.

The spelling of 102386988 in words is "one hundred two million, three hundred eighty-six thousand, nine hundred eighty-eight".