22667481 has 12 divisors (see below), whose sum is σ = 32825520. Its totient is φ = 15073080.

The previous prime is 22667471. The next prime is 22667483. The reversal of 22667481 is 18476622.

It is not a de Polignac number, because 22667481 - 2⁷ = 22667353 is a prime.

It is a super-2 number, since 2×22667481² = 1027629389770722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22667483) 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 11 ways as a sum of consecutive naturals, for example, 766 + ... + 6776.

It is an arithmetic number, because the mean of its divisors is an integer number (2735460).

Almost surely, 2^22667481 is an apocalyptic number.

It is an amenable number.

22667481 is a deficient number, since it is larger than the sum of its proper divisors (10158039).

22667481 is a wasteful number, since it uses less digits than its factorization.

22667481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6436 (or 6433 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22667481 is about 4761.0378070333. The cubic root of 22667481 is about 283.0095473894.

The spelling of 22667481 in words is "twenty-two million, six hundred sixty-seven thousand, four hundred eighty-one".