20226816 has 54 divisors (see below), whose sum is σ = 58325540. Its totient is φ = 6741504.

The previous prime is 20226799. The next prime is 20226823. The reversal of 20226816 is 61862202.

It is a self number, because there is not a number n which added to its sum of digits gives 20226816.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2086 + ... + 6693.

Almost surely, 2^20226816 is an apocalyptic number.

It is an amenable number.

20226816 is an abundant number, since it is smaller than the sum of its proper divisors (38098724).

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

20226816 is an equidigital number, since it uses as much as digits as its factorization.

20226816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801 (or 8784 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20226816 is about 4497.4232622692. The cubic root of 20226816 is about 272.4640291436.

The spelling of 20226816 in words is "twenty million, two hundred twenty-six thousand, eight hundred sixteen".