22820263 has 4 divisors (see below), whose sum is σ = 23250888. Its totient is φ = 22389640.

The previous prime is 22820261. The next prime is 22820279. The reversal of 22820263 is 36202822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36202822 = 2 ⋅18101411.

It is a cyclic number.

It is not a de Polignac number, because 22820263 - 2¹ = 22820261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215233 + ... + 215338.

It is an arithmetic number, because the mean of its divisors is an integer number (5812722).

Almost surely, 2^22820263 is an apocalyptic number.

22820263 is a deficient number, since it is larger than the sum of its proper divisors (430625).

22820263 is an equidigital number, since it uses as much as digits as its factorization.

22820263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430624.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22820263 is about 4777.0558924928. The cubic root of 22820263 is about 283.6439655042.

The spelling of 22820263 in words is "twenty-two million, eight hundred twenty thousand, two hundred sixty-three".