9902250 has 96 divisors (see below), whose sum is σ = 27937728. Its totient is φ = 2624400.

The previous prime is 9902239. The next prime is 9902257. The reversal of 9902250 is 522099.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (9902257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60669 + ... + 60831.

It is an arithmetic number, because the mean of its divisors is an integer number (291018).

Almost surely, 2^9902250 is an apocalyptic number.

9902250 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9902250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13968864).

9902250 is an abundant number, since it is smaller than the sum of its proper divisors (18035478).

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

9902250 is a wasteful number, since it uses less digits than its factorization.

9902250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 9902250 is about 3146.7840726685. The cubic root of 9902250 is about 214.7391825574.

It can be divided in two parts, 990 and 2250, that added together give a triangular number (3240 = T₈₀).

The spelling of 9902250 in words is "nine million, nine hundred two thousand, two hundred fifty".