22104457 has 8 divisors (see below), whose sum is σ = 23055872. Its totient is φ = 21168000.

The previous prime is 22104431. The next prime is 22104461. The reversal of 22104457 is 75440122.

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 22104457 - 2¹⁵ = 22071689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22104427) 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, 669 + ... + 6682.

It is an arithmetic number, because the mean of its divisors is an integer number (2881984).

Almost surely, 2^22104457 is an apocalyptic number.

It is an amenable number.

22104457 is a deficient number, since it is larger than the sum of its proper divisors (951415).

22104457 is an equidigital number, since it uses as much as digits as its factorization.

22104457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 22104457 is about 4701.5377271697. The cubic root of 22104457 is about 280.6467067036.

Adding to 22104457 its reverse (75440122), we get a palindrome (97544579).

The spelling of 22104457 in words is "twenty-two million, one hundred four thousand, four hundred fifty-seven".