22861408 has 36 divisors (see below), whose sum is σ = 47525940. Its totient is φ = 10823616.

The previous prime is 22861403. The next prime is 22861417. The reversal of 22861408 is 80416822.

It is a self number, because there is not a number n which added to its sum of digits gives 22861408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22861403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10563 + ... + 12541.

It is an arithmetic number, because the mean of its divisors is an integer number (1320165).

Almost surely, 2^22861408 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 22861408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23762970).

22861408 is an abundant number, since it is smaller than the sum of its proper divisors (24664532).

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

22861408 is a wasteful number, since it uses less digits than its factorization.

22861408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 22861408 is about 4781.3604758479. The cubic root of 22861408 is about 283.8143334499.

The spelling of 22861408 in words is "twenty-two million, eight hundred sixty-one thousand, four hundred eight".