22116457 has 8 divisors (see below), whose sum is σ = 24171840. Its totient is φ = 20068560.

The previous prime is 22116443. The next prime is 22116481. The reversal of 22116457 is 75461122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22116457 - 2¹⁵ = 22083689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22116487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5644 + ... + 8722.

It is an arithmetic number, because the mean of its divisors is an integer number (3021480).

Almost surely, 2^22116457 is an apocalyptic number.

It is an amenable number.

22116457 is a deficient number, since it is larger than the sum of its proper divisors (2055383).

22116457 is a wasteful number, since it uses less digits than its factorization.

22116457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743.

The product of its digits is 3360, while the sum is 28.

The square root of 22116457 is about 4702.8137322246. The cubic root of 22116457 is about 280.6974830582.

Adding to 22116457 its reverse (75461122), we get a palindrome (97577579).

It can be divided in two parts, 2211 and 6457, that added together give a palindrome (8668).

The spelling of 22116457 in words is "twenty-two million, one hundred sixteen thousand, four hundred fifty-seven".