22151416 has 64 divisors (see below), whose sum is σ = 50688000. Its totient is φ = 8864640.

The previous prime is 22151411. The next prime is 22151417. The reversal of 22151416 is 61415122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115881 + ... + 116071.

It is an arithmetic number, because the mean of its divisors is an integer number (792000).

Almost surely, 2^22151416 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 22151416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25344000).

22151416 is an abundant number, since it is smaller than the sum of its proper divisors (28536584).

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

22151416 is a wasteful number, since it uses less digits than its factorization.

22151416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 328 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 22151416 is about 4706.5290820306. The cubic root of 22151416 is about 280.8453026585.

Adding to 22151416 its reverse (61415122), we get a palindrome (83566538).

The spelling of 22151416 in words is "twenty-two million, one hundred fifty-one thousand, four hundred sixteen".