22180407 has 8 divisors (see below), whose sum is σ = 30528000. Its totient is φ = 14309880.

The previous prime is 22180399. The next prime is 22180421. The reversal of 22180407 is 70408122.

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

It is not a de Polignac number, because 22180407 - 2³ = 22180399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22180507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119157 + ... + 119342.

It is an arithmetic number, because the mean of its divisors is an integer number (3816000).

Almost surely, 2^22180407 is an apocalyptic number.

22180407 is a deficient number, since it is larger than the sum of its proper divisors (8347593).

22180407 is a wasteful number, since it uses less digits than its factorization.

22180407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238533.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22180407 is about 4709.6079454664. The cubic root of 22180407 is about 280.9677694234.

Adding to 22180407 its reverse (70408122), we get a palindrome (92588529).

The spelling of 22180407 in words is "twenty-two million, one hundred eighty thousand, four hundred seven".