22681394 has 8 divisors (see below), whose sum is σ = 34043520. Its totient is φ = 11333556.

The previous prime is 22681391. The next prime is 22681397. The reversal of 22681394 is 49318622.

It is an interprime number because it is at equal distance from previous prime (22681391) and next prime (22681397).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22681391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387 + ... + 7145.

It is an arithmetic number, because the mean of its divisors is an integer number (4255440).

Almost surely, 2^22681394 is an apocalyptic number.

22681394 is a deficient number, since it is larger than the sum of its proper divisors (11362126).

22681394 is a wasteful number, since it uses less digits than its factorization.

22681394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144.

The product of its digits is 20736, while the sum is 35.

The square root of 22681394 is about 4762.4987139106. The cubic root of 22681394 is about 283.0674380524.

The spelling of 22681394 in words is "twenty-two million, six hundred eighty-one thousand, three hundred ninety-four".