10445220 has 144 divisors (see below), whose sum is σ = 35118720. Its totient is φ = 2572416.

The previous prime is 10445219. The next prime is 10445257. The reversal of 10445220 is 2254401.

10445220 is a `hidden beast` number, since 1 + 0 + 445 + 220 = 666.

10445220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10445193 and 10445202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 360166 + ... + 360194.

It is an arithmetic number, because the mean of its divisors is an integer number (243880).

Almost surely, 2^10445220 is an apocalyptic number.

10445220 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 10445220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17559360).

10445220 is an abundant number, since it is smaller than the sum of its proper divisors (24673500).

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

10445220 is a wasteful number, since it uses less digits than its factorization.

10445220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 10445220 is about 3231.9065580552. The cubic root of 10445220 is about 218.5944832055.

Adding to 10445220 its reverse (2254401), we get a palindrome (12699621).

The spelling of 10445220 in words is "ten million, four hundred forty-five thousand, two hundred twenty".