22410420 has 96 divisors (see below), whose sum is σ = 67350528. Its totient is φ = 5548032.

The previous prime is 22410413. The next prime is 22410433. The reversal of 22410420 is 2401422.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22410420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129454 + ... + 129626.

It is an arithmetic number, because the mean of its divisors is an integer number (701568).

Almost surely, 2^22410420 is an apocalyptic number.

22410420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22410420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33675264).

22410420 is an abundant number, since it is smaller than the sum of its proper divisors (44940108).

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

22410420 is a wasteful number, since it uses less digits than its factorization.

22410420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22410420 is about 4733.9645119075. The cubic root of 22410420 is about 281.9356525381.

Adding to 22410420 its reverse (2401422), we get a palindrome (24811842).

The spelling of 22410420 in words is "twenty-two million, four hundred ten thousand, four hundred twenty".