22768457 has 8 divisors (see below), whose sum is σ = 24669216. Its totient is φ = 20930112.

The previous prime is 22768453. The next prime is 22768463. The reversal of 22768457 is 75486722.

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

It is a cyclic number.

It is not a de Polignac number, because 22768457 - 2² = 22768453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22768453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14843 + ... + 16304.

It is an arithmetic number, because the mean of its divisors is an integer number (3083652).

Almost surely, 2^22768457 is an apocalyptic number.

It is an amenable number.

22768457 is a deficient number, since it is larger than the sum of its proper divisors (1900759).

22768457 is a wasteful number, since it uses less digits than its factorization.

22768457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31207.

The product of its digits is 188160, while the sum is 41.

The square root of 22768457 is about 4771.6304341388. The cubic root of 22768457 is about 283.4291623563.

The spelling of 22768457 in words is "twenty-two million, seven hundred sixty-eight thousand, four hundred fifty-seven".