22636406 has 16 divisors (see below), whose sum is σ = 37258704. Its totient is φ = 10249824.

The previous prime is 22636381. The next prime is 22636409. The reversal of 22636406 is 60463622.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22636409) 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, 6836 + ... + 9591.

It is an arithmetic number, because the mean of its divisors is an integer number (2328669).

Almost surely, 2^22636406 is an apocalyptic number.

22636406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22636406 is a deficient number, since it is larger than the sum of its proper divisors (14622298).

22636406 is a wasteful number, since it uses less digits than its factorization.

22636406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16495.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 22636406 is about 4757.7732186392. The cubic root of 22636406 is about 282.8801616911.

The spelling of 22636406 in words is "twenty-two million, six hundred thirty-six thousand, four hundred six".