10220844 has 24 divisors (see below), whose sum is σ = 23905728. Its totient is φ = 3398800.

The previous prime is 10220827. The next prime is 10220863. The reversal of 10220844 is 44802201.

It is a self number, because there is not a number n which added to its sum of digits gives 10220844.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6319 + ... + 7769.

It is an arithmetic number, because the mean of its divisors is an integer number (996072).

Almost surely, 2^10220844 is an apocalyptic number.

It is an amenable number.

10220844 is an abundant number, since it is smaller than the sum of its proper divisors (13684884).

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

10220844 is a wasteful number, since it uses less digits than its factorization.

10220844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2043 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 10220844 is about 3197.0054738771. The cubic root of 10220844 is about 217.0179149487.

The spelling of 10220844 in words is "ten million, two hundred twenty thousand, eight hundred forty-four".