102239400 has 96 divisors (see below), whose sum is σ = 320916960. Its totient is φ = 26922240.

The previous prime is 102239383. The next prime is 102239407. The reversal of 102239400 is 4932201.

It is not an unprimeable number, because it can be changed into a prime (102239407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48774 + ... + 50826.

It is an arithmetic number, because the mean of its divisors is an integer number (3342885).

Almost surely, 2^102239400 is an apocalyptic number.

102239400 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 102239400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160458480).

102239400 is an abundant number, since it is smaller than the sum of its proper divisors (218677560).

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

102239400 is a wasteful number, since it uses less digits than its factorization.

102239400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 102239400 is about 10111.3500582266. The cubic root of 102239400 is about 467.5981282380.

The spelling of 102239400 in words is "one hundred two million, two hundred thirty-nine thousand, four hundred".