22681954 has 4 divisors (see below), whose sum is σ = 34022934. Its totient is φ = 11340976.

The previous prime is 22681951. The next prime is 22681957. The reversal of 22681954 is 45918622.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22681951) and next prime (22681957).

It can be written as a sum of positive squares in only one way, i.e., 20657025 + 2024929 = 4545^2 + 1423^2 .

It is not an unprimeable number, because it can be changed into a prime (22681951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5670487 + ... + 5670490.

Almost surely, 2^22681954 is an apocalyptic number.

22681954 is a deficient number, since it is larger than the sum of its proper divisors (11340980).

22681954 is a wasteful number, since it uses less digits than its factorization.

22681954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11340979.

The product of its digits is 34560, while the sum is 37.

The square root of 22681954 is about 4762.5575062145. The cubic root of 22681954 is about 283.0697676632.

The spelling of 22681954 in words is "twenty-two million, six hundred eighty-one thousand, nine hundred fifty-four".