10220816 has 10 divisors (see below), whose sum is σ = 19802862. Its totient is φ = 5110400.

The previous prime is 10220807. The next prime is 10220827. The reversal of 10220816 is 61802201.

10220816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 6400 = 3196^2 + 80^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319385 + ... + 319416.

Almost surely, 2^10220816 is an apocalyptic number.

10220816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10220816 is a deficient number, since it is larger than the sum of its proper divisors (9582046).

10220816 is an equidigital number, since it uses as much as digits as its factorization.

10220816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638809 (or 638803 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 10220816 is about 3197.0010947762. The cubic root of 10220816 is about 217.0177167750.

The spelling of 10220816 in words is "ten million, two hundred twenty thousand, eight hundred sixteen".