102099960 has 256 divisors, whose sum is σ = 370137600. Its totient is φ = 24938496.

The previous prime is 102099953. The next prime is 102099961. The reversal of 102099960 is 69990201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102099961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1230079 + ... + 1230161.

It is an arithmetic number, because the mean of its divisors is an integer number (1445850).

Almost surely, 2^102099960 is an apocalyptic number.

102099960 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 102099960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185068800).

102099960 is an abundant number, since it is smaller than the sum of its proper divisors (268037640).

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

102099960 is a wasteful number, since it uses less digits than its factorization.

102099960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 102099960 is about 10104.4524839300. The cubic root of 102099960 is about 467.3854524088.

The spelling of 102099960 in words is "one hundred two million, ninety-nine thousand, nine hundred sixty".