22156441 has 8 divisors (see below), whose sum is σ = 22831200. Its totient is φ = 21488160.

The previous prime is 22156439. The next prime is 22156469. The reversal of 22156441 is 14465122.

It is a happy number.

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 22156441 - 2¹ = 22156439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22156241) 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, 5830 + ... + 8848.

It is an arithmetic number, because the mean of its divisors is an integer number (2853900).

Almost surely, 2^22156441 is an apocalyptic number.

It is an amenable number.

22156441 is a deficient number, since it is larger than the sum of its proper divisors (674759).

22156441 is a wasteful number, since it uses less digits than its factorization.

22156441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239.

The product of its digits is 1920, while the sum is 25.

The square root of 22156441 is about 4707.0628846447. The cubic root of 22156441 is about 280.8665374326.

The spelling of 22156441 in words is "twenty-two million, one hundred fifty-six thousand, four hundred forty-one".