22246620 has 96 divisors (see below), whose sum is σ = 69866496. Its totient is φ = 5241600.

The previous prime is 22246597. The next prime is 22246621. The reversal of 22246620 is 2664222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22246621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23965 + ... + 24875.

It is an arithmetic number, because the mean of its divisors is an integer number (727776).

Almost surely, 2^22246620 is an apocalyptic number.

22246620 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 22246620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34933248).

22246620 is an abundant number, since it is smaller than the sum of its proper divisors (47619876).

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

22246620 is a wasteful number, since it uses less digits than its factorization.

22246620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22246620 is about 4716.6322731373. The cubic root of 22246620 is about 281.2470735498.

It can be divided in two parts, 22 and 246620, that added together give a palindrome (246642).

The spelling of 22246620 in words is "twenty-two million, two hundred forty-six thousand, six hundred twenty".