22064460 has 96 divisors (see below), whose sum is σ = 68269824. Its totient is φ = 5280000.

The previous prime is 22064459. The next prime is 22064473. The reversal of 22064460 is 6446022.

It is a self number, because there is not a number n which added to its sum of digits gives 22064460.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66495 + ... + 66825.

It is an arithmetic number, because the mean of its divisors is an integer number (711144).

Almost surely, 2^22064460 is an apocalyptic number.

22064460 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 22064460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34134912).

22064460 is an abundant number, since it is smaller than the sum of its proper divisors (46205364).

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

22064460 is a wasteful number, since it uses less digits than its factorization.

22064460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 453 counting only the distinct ones).

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

The square root of 22064460 is about 4697.2821929282. The cubic root of 22064460 is about 280.4773320608.

It can be divided in two parts, 2206 and 4460, that added together give a palindrome (6666).

The spelling of 22064460 in words is "twenty-two million, sixty-four thousand, four hundred sixty".