10102290 has 80 divisors (see below), whose sum is σ = 27829440. Its totient is φ = 2342560.

The previous prime is 10102289. The next prime is 10102297. The reversal of 10102290 is 9220101.

10102290 = 60² + 61² + ... + 312².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10102297) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 439219 + ... + 439241.

It is an arithmetic number, because the mean of its divisors is an integer number (347868).

Almost surely, 2^10102290 is an apocalyptic number.

10102290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10102290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13914720).

10102290 is an abundant number, since it is smaller than the sum of its proper divisors (17727150).

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

10102290 is an equidigital number, since it uses as much as digits as its factorization.

10102290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 10102290 is about 3178.4099798484. The cubic root of 10102290 is about 216.1755688469.

Adding to 10102290 its reverse (9220101), we get a palindrome (19322391).

The spelling of 10102290 in words is "ten million, one hundred two thousand, two hundred ninety".