22417420 has 12 divisors (see below), whose sum is σ = 47076624. Its totient is φ = 8966960.

The previous prime is 22417403. The next prime is 22417429. The reversal of 22417420 is 2471422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22417391 and 22417400.

It is not an unprimeable number, because it can be changed into a prime (22417429) 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, 560416 + ... + 560455.

It is an arithmetic number, because the mean of its divisors is an integer number (3923052).

Almost surely, 2^22417420 is an apocalyptic number.

22417420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22417420 is an abundant number, since it is smaller than the sum of its proper divisors (24659204).

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

22417420 is a wasteful number, since it uses less digits than its factorization.

22417420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120880 (or 1120878 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22417420 is about 4734.7037922134. The cubic root of 22417420 is about 281.9650041243.

Adding to 22417420 its reverse (2471422), we get a palindrome (24888842).

The spelling of 22417420 in words is "twenty-two million, four hundred seventeen thousand, four hundred twenty".