22706978 has 16 divisors (see below), whose sum is σ = 39083904. Its totient is φ = 9692160.

The previous prime is 22706977. The next prime is 22707001. The reversal of 22706978 is 87960722.

It is not an unprimeable number, because it can be changed into a prime (22706977) 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, 443 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (2442744).

Almost surely, 2^22706978 is an apocalyptic number.

22706978 is a deficient number, since it is larger than the sum of its proper divisors (16376926).

22706978 is a wasteful number, since it uses less digits than its factorization.

22706978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 22706978 is about 4765.1839418851. The cubic root of 22706978 is about 283.1738288694.

The spelling of 22706978 in words is "twenty-two million, seven hundred six thousand, nine hundred seventy-eight".