22667745 has 16 divisors (see below), whose sum is σ = 36489600. Its totient is φ = 12015744.

The previous prime is 22667731. The next prime is 22667747. The reversal of 22667745 is 54776622.

It is a happy number.

It is not a de Polignac number, because 22667745 - 2¹² = 22663649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22667747) 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 15 ways as a sum of consecutive naturals, for example, 2020 + ... + 7029.

It is an arithmetic number, because the mean of its divisors is an integer number (2280600).

Almost surely, 2^22667745 is an apocalyptic number.

It is an amenable number.

22667745 is a deficient number, since it is larger than the sum of its proper divisors (13821855).

22667745 is a wasteful number, since it uses less digits than its factorization.

22667745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224.

The product of its digits is 141120, while the sum is 39.

The square root of 22667745 is about 4761.0655320002. The cubic root of 22667745 is about 283.0106460886.

It can be divided in two parts, 2266 and 7745, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 22667745 in words is "twenty-two million, six hundred sixty-seven thousand, seven hundred forty-five".