22402116 has 96 divisors (see below), whose sum is σ = 64310400. Its totient is φ = 6687360.

The previous prime is 22402091. The next prime is 22402169. The reversal of 22402116 is 61120422.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 129406 + ... + 129578.

It is an arithmetic number, because the mean of its divisors is an integer number (669900).

Almost surely, 2^22402116 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 22402116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32155200).

22402116 is an abundant number, since it is smaller than the sum of its proper divisors (41908284).

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

22402116 is a wasteful number, since it uses less digits than its factorization.

22402116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22402116 is about 4733.0873645011. The cubic root of 22402116 is about 281.9008252437.

Adding to 22402116 its reverse (61120422), we get a palindrome (83522538).

It can be divided in two parts, 2240 and 2116, that added together give a square (4356 = 66²).

The spelling of 22402116 in words is "twenty-two million, four hundred two thousand, one hundred sixteen".