10045220 has 12 divisors (see below), whose sum is σ = 21095004. Its totient is φ = 4018080.

The previous prime is 10045219. The next prime is 10045237. The reversal of 10045220 is 2254001.

It can be written as a sum of positive squares in 2 ways, for example, as 4919524 + 5125696 = 2218^2 + 2264^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10045195 and 10045204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251111 + ... + 251150.

It is an arithmetic number, because the mean of its divisors is an integer number (1757917).

Almost surely, 2^10045220 is an apocalyptic number.

10045220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10045220 is an abundant number, since it is smaller than the sum of its proper divisors (11049784).

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

10045220 is a wasteful number, since it uses less digits than its factorization.

10045220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502270 (or 502268 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 10045220 is about 3169.4195052091. The cubic root of 10045220 is about 215.7677258524.

Adding to 10045220 its reverse (2254001), we get a palindrome (12299221).

The spelling of 10045220 in words is "ten million, forty-five thousand, two hundred twenty".