22955616 has 72 divisors (see below), whose sum is σ = 67367160. Its totient is φ = 7604928.

The previous prime is 22955609. The next prime is 22955657. The reversal of 22955616 is 61655922.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22955616 is a `hidden beast` number, since 2 + 2 + 95 + 561 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 140751 + ... + 140913.

It is an arithmetic number, because the mean of its divisors is an integer number (935655).

Almost surely, 2^22955616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22955616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33683580).

22955616 is an abundant number, since it is smaller than the sum of its proper divisors (44411544).

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

22955616 is an equidigital number, since it uses as much as digits as its factorization.

22955616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 168 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 22955616 is about 4791.2019368839. The cubic root of 22955616 is about 284.2036494762.

The spelling of 22955616 in words is "twenty-two million, nine hundred fifty-five thousand, six hundred sixteen".