10423220 has 12 divisors (see below), whose sum is σ = 21888804. Its totient is φ = 4169280.

The previous prime is 10423219. The next prime is 10423249. The reversal of 10423220 is 2232401.

It can be written as a sum of positive squares in 2 ways, for example, as 4787344 + 5635876 = 2188^2 + 2374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10423195 and 10423204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260561 + ... + 260600.

It is an arithmetic number, because the mean of its divisors is an integer number (1824067).

Almost surely, 2^10423220 is an apocalyptic number.

10423220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10423220 is an abundant number, since it is smaller than the sum of its proper divisors (11465584).

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

10423220 is a wasteful number, since it uses less digits than its factorization.

10423220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521170 (or 521168 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 10423220 is about 3228.5012002476. The cubic root of 10423220 is about 218.4409054949.

Adding to 10423220 its reverse (2232401), we get a palindrome (12655621).

The spelling of 10423220 in words is "ten million, four hundred twenty-three thousand, two hundred twenty".