22406738 has 32 divisors (see below), whose sum is σ = 38154240. Its totient is φ = 9812880.

The previous prime is 22406717. The next prime is 22406753. The reversal of 22406738 is 83760422.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26681 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (1192320).

Almost surely, 2^22406738 is an apocalyptic number.

22406738 is a deficient number, since it is larger than the sum of its proper divisors (15747502).

22406738 is a wasteful number, since it uses less digits than its factorization.

22406738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22406738 is about 4733.5756041284. The cubic root of 22406738 is about 281.9202111507.

The spelling of 22406738 in words is "twenty-two million, four hundred six thousand, seven hundred thirty-eight".