10223520 has 144 divisors (see below), whose sum is σ = 34564320. Its totient is φ = 2539008.

The previous prime is 10223497. The next prime is 10223527. The reversal of 10223520 is 2532201.

It is a super-2 number, since 2×10223520² = 209040722380800, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10223520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10223527) 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, 173251 + ... + 173309.

It is an arithmetic number, because the mean of its divisors is an integer number (240030).

Almost surely, 2^10223520 is an apocalyptic number.

10223520 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 10223520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17282160).

10223520 is an abundant number, since it is smaller than the sum of its proper divisors (24340800).

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

10223520 is a wasteful number, since it uses less digits than its factorization.

10223520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 10223520 is about 3197.4239631303. The cubic root of 10223520 is about 217.0368530216.

Adding to 10223520 its reverse (2532201), we get a palindrome (12755721).

The spelling of 10223520 in words is "ten million, two hundred twenty-three thousand, five hundred twenty".