22220463 has 4 divisors (see below), whose sum is σ = 29627288. Its totient is φ = 14813640.

The previous prime is 22220453. The next prime is 22220489. The reversal of 22220463 is 36402222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22220463 - 2⁴ = 22220447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220453) 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, 3703408 + ... + 3703413.

It is an arithmetic number, because the mean of its divisors is an integer number (7406822).

Almost surely, 2^22220463 is an apocalyptic number.

22220463 is a deficient number, since it is larger than the sum of its proper divisors (7406825).

22220463 is an equidigital number, since it uses as much as digits as its factorization.

22220463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7406824.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22220463 is about 4713.8586105228. The cubic root of 22220463 is about 281.1368026440.

Adding to 22220463 its reverse (36402222), we get a palindrome (58622685).

The spelling of 22220463 in words is "twenty-two million, two hundred twenty thousand, four hundred sixty-three".