102865920 has 176 divisors, whose sum is σ = 339769248. Its totient is φ = 26542080.

The previous prime is 102865907. The next prime is 102865921. The reversal of 102865920 is 29568201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102865921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568230 + ... + 568410.

Almost surely, 2^102865920 is an apocalyptic number.

102865920 is a gapful number since it is divisible by the number (10) 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 102865920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169884624).

102865920 is an abundant number, since it is smaller than the sum of its proper divisors (236903328).

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

102865920 is a wasteful number, since it uses less digits than its factorization.

102865920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 102865920 is about 10142.2837664897. The cubic root of 102865920 is about 468.5513262955.

The spelling of 102865920 in words is "one hundred two million, eight hundred sixty-five thousand, nine hundred twenty".