22010620 has 48 divisors (see below), whose sum is σ = 48254976. Its totient is φ = 8424000.

The previous prime is 22010603. The next prime is 22010621. The reversal of 22010620 is 2601022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22010620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81085 + ... + 81355.

It is an arithmetic number, because the mean of its divisors is an integer number (1005312).

Almost surely, 2^22010620 is an apocalyptic number.

22010620 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 22010620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24127488).

22010620 is an abundant number, since it is smaller than the sum of its proper divisors (26244356).

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

22010620 is a wasteful number, since it uses less digits than its factorization.

22010620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22010620 is about 4691.5477190369. The cubic root of 22010620 is about 280.2490131727.

Adding to 22010620 its reverse (2601022), we get a palindrome (24611642).

The spelling of 22010620 in words is "twenty-two million, ten thousand, six hundred twenty".