102203928 has 48 divisors (see below), whose sum is σ = 282035520. Its totient is φ = 33423936.

The previous prime is 102203923. The next prime is 102203947. The reversal of 102203928 is 829302201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9576 + ... + 17207.

It is an arithmetic number, because the mean of its divisors is an integer number (5875740).

Almost surely, 2^102203928 is an apocalyptic number.

102203928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

102203928 is an abundant number, since it is smaller than the sum of its proper divisors (179831592).

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

102203928 is a wasteful number, since it uses less digits than its factorization.

102203928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26848 (or 26841 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 102203928 is about 10109.5958376188. The cubic root of 102203928 is about 467.5440441980.

The spelling of 102203928 in words is "one hundred two million, two hundred three thousand, nine hundred twenty-eight".